Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠
Transcript of Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠
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23)
47°
x
24) 53°
x
25)
75°
x
26)
75°
x
27)
30°
x
28)
30°
x
29)
35°
x
30) 54°
x
-4-
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55)
74°
x
56)
44°
x
57)
51°
x
58) 46°
x
59)
73°
x
60)
71°
x
61)
30°
x
62)
67°
x
-8-
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87)
76°
x
88)
71°
x
89)
80°
x
90)
73°
x
91)
39°
x
92)
98°
x
93)
27°
x
94)
92°
x
-12-
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95)
76°
x
96)
96°
x
97)
49°
x
98)
69°
x
99)
112°
x
100) 52°
x
-13-
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119) 40°
x
120)
45°
x
121)
52°
x
122) 65°
x
123)
40°
x
124)
26°
x
-17-
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125)
38°
x
126)
42°
x
127)
42°
x
128)
50°
x
129)
30°
x
130)
34°
x
-18-
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137)
42°
x
138)
46°
x
139)
94°
x
140)
28°
x
141)
46°
x
142)
35°
x
-20-
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143) 55°
x
144)
75°
x
145)
25°
x
146)
38°
x
147)
44°
x
148)
44°
x
-21-
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149)
40°
x
150)
51°
x
151)
86°
x
152)
75°
x
153)
29°
x
154)
35°
x
-22-
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155) 41°
x
156)
47°
x
157)
48°
x
158)
33°
x
159)
66°
x
160) 50°
x
-23-
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173)
80°
x
174)
82°
x
175) 70°
x
176)
67°
x
177)
74°
x
178)
39°
x
-26-
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179) 48°
x
180)
74°
x
181) 72°
x
182)
77°
x
183) 73°
x
184)
32°
x
-27-
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185)
31°
x
186)
118°
x
187)
49°
x
188)
100°
x
189)
88°
x
190)
112°
x
-28-
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191)
71°
x
192)
51°
x
193)
53°
x
194)
116°
x
195)
120°
x
196)
52°
x
-29-
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197)
36°
x
198)
41°
x
199)
26°
x
200)
31°
x
201)
80°
x
202)
x
115°
-30-
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215)
71°
x
216)
x
120°
217) 30°
x
218)
94°
x
219)
96°
x
220)
70°
x
-33-
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221)
x
110°
222)
53°
x
223)
67°
x
224) 70°
x
225)
x
142°
226)
92°
x
-34-
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227)
48°
x
228)
55°
x
229)
x
145°
230) 50°
x
231)
74°
x
232)
40°
x
-35-
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233)
x
140°
234)
100°
x
235)
x
108°
236)
88°
x
237)
55°
x
238)
x
130°
-36-
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245)
84°
x
246)
60°
x
247)
55°
x
248)
x
140°
249)
50°
x
250)
50°
x
-38-
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251)
69°
x
252)
70°
x
253)
71°
x
254)
114°
x
255)
45°
x
256)
46°
x
-39-
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263)
54°
x
264)
47°
x
265)
x
154°
266)
118°
x
267)
45°
x
268)
43°
x
-41-
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309)
110°
x
310)
117°
x
311)
30°
x
312)
134°
x
313)
114°
x
-49-
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314)
52°
x
315)
58°
x
316)
111°
x
317)
60°
x
-50-
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326)
42°
x
327)
55°
x
328)
72°
x
329)
70°
x
-53-
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330) 110°
x
331)
128°
x
332)
106°
x
333)
119°
x
-54-
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343)
115°
x
344)
154°
x
345)
63°
x
346)
68°
x
-57-
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355) 120°
x
356)
121°
x
357)
121°
x
358)
120°
x
-60-
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359)
118°
x
360) 56°
x
361)
84°
x
362)
130°
x
-61-
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363)
70°
x
364)
68°
x
365)
134°
x
366)
124°
x
367)
70°
x
-62-
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368) 56°
x
369)
110°
x
370)
73°
x
371)
116°
x
-63-
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372)
28°
x
373)
70°
x
374)
122°
x
375)
71°
x
-64-
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376)
108°
x
377)
107°
x
378)
104°
x
379)
113°
x
-65-
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380)
134°
x
381)
42°
x
382)
140°
x
383)
64°
x
-66-
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384)
55°
x
385)
119°
x
386)
146°
x
387)
110°
x
-67-
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388)
64°
x
389)
152°
x
390) 63°
x
391)
67°
x
-68-
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392)
125°
x
393)
69°
x
394)
158°
x
395)
72°
x
-69-
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396)
108°
x
397)
60°
x
398)
105°
x
399)
75°
x
-70-
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400)
86°
x
401) m∠2 =
6
x
+ 2
80°
2
402) m∠2 =
x
+ 65
60°2
403) m∠2 =
18
x
− 6
30°2
404) m∠2 =
6
x
+ 12
60°
2
405) m∠2 =
10 + 5
x
65° 2
-71-
![Page 72: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/72.jpg)
406) m∠2 =
x
+ 78
73°
2
407) m∠2 =
16
x
− 4
60°2
408) m∠2 =
66 +
x
60°
2
409) m∠2 =
27
x
− 2
37°
2
410) m∠2 =
x
+ 44
102° 2
411) m∠2 =
x
+ 92
46°
2
-72-
![Page 73: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/73.jpg)
412) m∠2 =
x
+ 64
60°2
413) m∠2 =
x
+ 54
65°
2
414) m∠2 =
x
+ 98
45°2
415) m∠2 =
7
x
− 3
25°2
416) m∠2 =
16
x
+ 6
70°2
417) m∠2 =
x
+ 68
60° 2
-73-
![Page 74: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/74.jpg)
418) m∠2 =
7
x
+ 2
75°
2
419) m∠2 =
17
x
+ 2
55°
2
420) m∠2 =
14
x
− 1
69°
2
421) m∠2 =
11
x
+ 5
60°
2
422) m∠2 =
x
+ 60
55°
2
423) m∠2 =
7
x
+ 3
52°
2
-74-
![Page 75: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/75.jpg)
424) m∠2 =
x
+ 52
45°
2
425) m∠2 =
x
+ 57
65°
2
426) m∠2 =
8
x
+ 4
60°
2
427) m∠2 =
x
+ 77
70°
2
428) m∠2 =
16
x
− 3
77°
2
429) m∠2 =
4
x
− 2
120°2
-75-
![Page 76: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/76.jpg)
430) m∠2 =
x
+ 56
82°
2
431) m∠2 =
x
+ 67
60°
2
432) m∠2 =
x
+ 54
48°2
433) m∠2 =
10
x
− 8
54°
2
434) m∠2 =
x
+ 106
41°
2
435) m∠2 =
7
x
+ 11
67°
2
-76-
![Page 77: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/77.jpg)
436) m∠2 =
11
x
− 1
65°
2
437) m∠2 =
81 +
x
73°2
438) m∠2 =
40 +
x
116°
2
439) m∠2 =
x
+ 54
88° 2
440) m∠2 = 10
x
60°
2
441) m∠2 =
x
+ 51
92°
2
-77-
![Page 78: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/78.jpg)
442) m∠2 =
2 + 19
x
51°
2
443) m∠2 =
x
+ 87
50°
2
444) m∠2 =
x
+ 59
55°
2
445) m∠2 = 5
x
40°
2
446) m∠2 =
x
+ 51
68° 2
447) m∠2 =
x
+ 34
75°
2
-78-
![Page 79: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/79.jpg)
448) m∠2 =
9
x
+ 4
100°
2
449) m∠2 =
x
+ 96
46°
2
450) m∠2 =
x
+ 51
46°2
451) m∠2 =
x
+ 60
52°
2
452) m∠2 =
x
+ 97
44°
2
453) m∠2 =
x
+ 58
65°
2
-79-
![Page 80: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/80.jpg)
454) m∠2 =
5
x
+ 6
46° 2
455) m∠2 =
x
+ 74
70°
2
456) m∠2 =
14
x
+ 5
75°
2
457) m∠2 =
x
+ 46
40°
2
458) m∠2 = 14
x
48°
2
459) m∠2 =
−2 + 11
x
42°
2
-80-
![Page 81: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/81.jpg)
460) m∠2 =
x
+ 33
76°
2
461) m∠2 =
4
x
− 1
27°
2
462) m∠2 =
10
x
+ 6
66°2
463) m∠2 =
5
x
+ 9
73°
2
464) m∠2 =
10
x
+ 2
72°
2
465) m∠2 =
8
x
− 2
104°2
-81-
![Page 82: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/82.jpg)
466) m∠2 =
x
+ 99
44°2
467) m∠2 =
17
x
+ 7
44°2
468) m∠2 =
8 + 6
x
50°
2
469) m∠2 =
6
x
+ 13
55°
2
470) m∠2 =
x
+ 47
69°2
471) m∠2 =
6
x
+ 2
68°2
-82-
![Page 83: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/83.jpg)
472) m∠2 =
11
x
− 3
76° 2
473) m∠2 =
x
+ 48
40°
2
474) m∠2 =
x
+ 77
38°
2
475) m∠2 =
7
x
+ 4
46°2
476) m∠2 =
13
x
− 8
42°2
477) m∠2 =
x
+ 105
40°2
-83-
![Page 84: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/84.jpg)
478) m∠2 =
14
x
+ 6
45°
2
479) m∠2 =
x
+ 83
30°
2
480) m∠2 =
x
+ 37
120°
2
481) m∠2 =
9
x
+ 5
65°2
482) m∠2 =
x
+ 44
40°
2
483) m∠2 =
x
+ 76
54°2
-84-
![Page 85: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/85.jpg)
484) m∠2 =
x
+ 80
75°
2
485) m∠2 =
18
x
+ 1
34°2
486) m∠2 =
x
+ 80
36°
2
487) m∠2 =
14
x
− 6
37°
2
488) m∠2 =
x
+ 95
45°
2
489) m∠2 =
5
x
+ 10
50°2
-85-
![Page 86: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/86.jpg)
490) m∠2 =
9
x
+ 4
49° 2
491) m∠2 =
12 + 10
x
44°2
492) m∠2 =
x
+ 78
32°2
493) m∠2 =
x
+ 70
48°2
494) m∠2 = 18
x
45°2
495) m∠2 =
11
x
+ 1
90°
2
-86-
![Page 87: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/87.jpg)
496) m∠2 =
9
x
+ 6
51°
2
497) m∠2 =
x
+ 108
38°
2
498) m∠2 =
49 +
x
94°
2
499) m∠2 =
x
+ 70
50°
2
500) m∠2 =
x
+ 88
50°
2
501) m∠2 =
101 +
x
42°2
-87-
![Page 88: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/88.jpg)
502) m∠2 =
x
+ 88
48°
2
503) m∠2 =
−2 + 23
x
45°
2
504) m∠2 =
x
+ 91
48°2
505) m∠2 =
60 +
x
54°
2
506) m∠2 =
10
x
− 3
77°
2
507) m∠2 =
17
x
− 3
50°2
-88-
![Page 89: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/89.jpg)
508) m∠2 =
9
x
+ 11
50°2
509) m∠2 =
8
x
− 4
60°2
510) m∠2 =
8
x
+ 4
60°2
511) m∠2 =
3
x
+ 4
25°2
512) m∠2 =
x
+ 46
40°
2
513) m∠2 =
x
+ 67
60°
2
-89-
![Page 90: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/90.jpg)
514) m∠2 =
7
x
− 5
44°
2
515) m∠2 =
7
x
+ 1
43° 2
516) m∠2 =
x
+ 55
49°2
517) m∠2 =
16
x
+ 6
55°2
518) m∠2 =
x
+ 59
70°
2
519) m∠2 =
x
+ 57
74°
2
-90-
![Page 91: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/91.jpg)
520) m∠2 =
11
x
+ 5
60°
2
521) m∠2 =
11
x
− 6
60°2
522) m∠2 =
x
+ 124
30°2
523) m∠2 =
6 + 7
x
73°
2
524) m∠2 =
5
x
+ 5
40°
2
525) m∠2 =
x
+ 96
45°
2
-91-
![Page 92: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/92.jpg)
526) m∠2 =
70 +
x
66°2
527) m∠2 =
x
+ 98
45°2
528) m∠2 =
9
x
+ 8
50°
2
529) m∠2 =
50 +
x
90°
2
530) m∠2 =
x
+ 45
100°2
531) m∠2 =
x
+ 32
76°
2
-92-
![Page 93: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/93.jpg)
532) m∠2 =
−4 + 20
x
76°2
533) m∠2 =
x
+ 37
29° 2
534) m∠2 =
26
x
− 4
40°
2
535) m∠2 =
x
+ 54
86°
2
536) m∠2 =
x
+ 106
41°
2
537) m∠2 =
10
x
− 3
47° 2
-93-
![Page 94: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/94.jpg)
538) m∠2 =
x
+ 59
55° 2
539) m∠2 =
12
x
+ 7
70°
2
540) m∠2 =
66 +
x
60°2
541) m∠2 =
x
+ 76
72°
2
542) m∠2 =
11
x
+ 5
71°
2
543) m∠2 =
6
x
− 2
70°
2
-94-
![Page 95: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/95.jpg)
544) m∠2 =
10
x
+ 7
67°
2
545) m∠2 =
7
x
+ 8
43°
2
546) m∠2 =
x
+ 89
49°2
547) m∠2 =
9
x
+ 1
70°
2
548) m∠2 =
x
+ 64
60°
2
549) m∠2 =
x
+ 68
60°
2
-95-
![Page 96: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/96.jpg)
550) m∠2 =
x
+ 75
44°
2
551) m∠2 =
x
+ 35
75°
2
552) m∠2 =
x
+ 65
60°2
553) m∠2 =
−3 + 8
x
90° 2
554) m∠2 =
x
+ 97
45°
2
-96-
![Page 97: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/97.jpg)
555) m∠2 =
9
x
− 3
78°
2
556) m∠2 =
x
+ 108
40°
2
557) m∠2 =
x
+ 50
69°
2
558) m∠2 =
x
+ 83
77°2
559) m∠2 =
x
+ 45
40°
2
560) m∠2 =
x
+ 51
86°
2
-97-
![Page 98: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/98.jpg)
561) m∠2 =
58 +
x
74°
2
562) m∠2 =
8 + 9
x
38°
2
563) m∠2 =
15
x
+ 6
66°2
564) m∠2 =
x
+ 71
65°2
565) m∠2 =
4 + 14
x
60°
2
566) m∠2 =
18
x
+ 10
31°
2
-98-
![Page 99: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/99.jpg)
567) m∠2 = 6
x
30°
2
568) m∠2 =
6
x
+ 3
45°
2
569) m∠2 =
54 +
x
82°
2
570) m∠2 =
x
+ 32
124°
2
571) m∠2 =
7
x
+ 10
66°
2
572) m∠2 =
15
x
− 3
39°
2
-99-
![Page 100: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/100.jpg)
573) m∠2 =
13
x
− 3
75°
2
574) m∠2 =
5
x
+ 5
90°
2
575) m∠2 =
6
x
+ 9
78°
2
576) m∠2 =
x
+ 44
100°2
577) m∠2 =
4
x
− 2
75°
2
578) m∠2 =
11
x
− 3
98°
2
-100-
![Page 101: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/101.jpg)
579) m∠2 =
2
x
+ 11
130°2
580) m∠2 =
x
+ 48
100°
2
581) m∠2 =
−5 + 10
x
90° 2
582) m∠2 =
14
x
− 3
74°
2
583) m∠2 =
8
x
+ 6
71°
2
584) m∠2 =
6 + 4
x
77°
2
-101-
![Page 102: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/102.jpg)
585) m∠2 =
6
x
− 8
40° 2
586) m∠2 =
7
x
+ 5
100°
2
587) m∠2 =
13
x
− 3
82°
2
588) m∠2 =
8
x
+ 2
65°
2
589) m∠2 =
x
+ 40
73° 2
590) m∠2 =
14
x
+ 3
73°
2
-102-
![Page 103: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/103.jpg)
591) m∠2 =
x
+ 33
26°2
592) m∠2 =
7
x
− 3
67°
2
593) m∠2 =
x
+ 44
102° 2
594) m∠2 =
6
x
− 4
104°2
595) m∠2 =
x
+ 51
92°
2
596) m∠2 =
x
+ 78
70°2
-103-
![Page 104: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/104.jpg)
597) m∠2 =
7
x
+ 13
69°
2
598) m∠2 =
x
+ 37
75°
2
599) m∠2 =
x
+ 61
70° 2
600) m∠2 =
10
x
+ 2
72°
2
601) m∠2 =
x
+ 73
65°
2
602) m∠2 =
6
x
− 2
2140°
-104-
![Page 105: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/105.jpg)
603) m∠2 =
x
+ 50
71° 2
604) m∠2 =
x
+ 83
77°2
605) m∠2 =
x
+ 46
100°
2
606) m∠2 =
x
+ 126
2
150°
607) m∠2 =
x
+ 67
29°
2
608) m∠2 =
x
+ 71
60°
2
-105-
![Page 106: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/106.jpg)
609) m∠2 =
x
+ 126
60°
2
610) m∠2 =
x
+ 68
2
120°
611) m∠2 =
6
x
+ 1
55°
2
612) m∠2 =
11
x
+ 1
51°
2
613) m∠2 =
10
x
− 3
2
134°
614) m∠2 =
7
x
+ 4
60°2
-106-
![Page 107: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/107.jpg)
615) m∠2 =
10
x
− 7
73°
2
616) m∠2 =
15
x
− 4
2
148°
617) m∠2 =
3
x
+ 6
2
138°
618) m∠2 =
x
+ 36
120°
2
619) m∠2 =
x
+ 40
75°
2
620) m∠2 =
x
+ 72
60°
2
-107-
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621) m∠2 =
6
x
− 4
2
88°
622) m∠2 =
92 +
x
50°
2
623) m∠2 =
11
x
+ 4
55°
2
624) m∠2 =
x
+ 116
54°
2
-108-
![Page 109: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/109.jpg)
625) m∠2 =
x
+ 79
2
140°
626) m∠2 =
x
+ 42
75°
2
627) m∠2 =
x
+ 134
2152°
628) m∠2 =
6 + 6
x
60°
2
629) m∠2 =
7
x
− 10
2
120°
630) m∠2 =
x
+ 69
60°
2
-109-
![Page 110: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/110.jpg)
631) m∠2 =
4
x
+ 7
2
94°
632) m∠2 =
9
x
+ 2
46°2
633) m∠2 =
x
+ 61
2
130°
634) m∠2 = 10
x
60°
2
635) m∠2 =
5
x
+ 5
2
120°
636) m∠2 =
x
+ 61
65°2
-110-
![Page 111: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/111.jpg)
637) m∠2 =
6
x
− 2
70°2
638) m∠2 =
x
+ 83
30°2
639) m∠2 =
7
x
− 1
28°2
640) m∠2 =
x
+ 70
60°2
641) m∠2 =
13
x
− 8
42°
2
642) m∠2 =
−6 + 12
x
42°
2
-111-
![Page 112: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/112.jpg)
643) m∠2 =
x
+ 54
2132°
644) m∠2 =
4
x
+ 12
2
120°
645) m∠2 =
9
x
− 3
60°
2
646) m∠2 = 9
x
54°
2
-112-
![Page 113: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/113.jpg)
647) m∠2 =
x
+ 72
2
114°
648) m∠2 =
x
+ 86
75°2
649) m∠2 =
8
x
+ 14
35°
2
650) m∠2 =
x
+ 127
60°2
651) m∠2 =
x
+ 155
116°2
652) m∠2 =
x
+ 52
40° 2
-113-
![Page 114: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/114.jpg)
653) m∠2 =
15
x
− 1
76°
2
654) m∠2 =
15
x
+ 2
44°2
655) m∠2 =
x
+ 77
2
138°
656) m∠2 =
8
x
+ 11
30°2
657) m∠2 =
5
x
+ 13
74°
2
658) m∠2 =
x
+ 68
60°
2
-114-
![Page 115: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/115.jpg)
659) m∠2 =
8
x
+ 3
30°
2
660) m∠2 =
x
+ 161
124°
2
661) m∠2 =
x
+ 107
40°
2
662) m∠2 =
9
x
− 11
46°
2
663) m∠2 =
11
x
+ 12
40°
2
664) m∠2 =
x
+ 64
52°
2
-115-
![Page 116: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/116.jpg)
665) m∠2 = 6
x
2
132°
666) m∠2 =
149 +
x
71°
2
667) m∠2 =
11
x
+ 9
30°2
668) m∠2 =
x
+ 131
2
150°
669) m∠2 =
7
x
+ 5
47°
2
670) m∠2 =
x
+ 72
2
120°
-116-
![Page 117: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/117.jpg)
671) m∠2 =
11
x
− 6
2
120°
672) m∠2 =
x
+ 120
54°
2
673) m∠2 = 8
x
54°2
674) m∠2 =
5
x
− 10
50°
2
675) m∠2 =
9
x
+ 11
2
115°
676) m∠2 =
x
+ 73
48°
2
-117-
![Page 118: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/118.jpg)
677) m∠2 =
9
x
− 9
36°
2
678) m∠2 =
21
x
+ 4
2
155°
679) m∠2 =
23
x
+ 10
32°2
680) m∠2 =
x
+ 37
31° 2
681) m∠2 =
7
x
− 10
60°
2
682) m∠2 =
x
+ 107
50°
2
-118-
![Page 119: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/119.jpg)
683) m∠2 = 5
x
2
110°
684) m∠2 =
3
x
+ 13
2 140°
685) m∠2 =
6
x
+ 2
44°
2
686) m∠2 =
x
+ 86
32°2
687) m∠2 =
14 + 17
x
120°2
688) m∠2 =
x
+ 52
46°
2
-119-
![Page 120: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/120.jpg)
689) m∠2 =
x
+ 85
52°2
690) m∠2 =
x
+ 54
2 135°
691) m∠2 =
3
x
+ 8
71°
2
692) m∠2 =
x
+ 125
50°
2
693) m∠2 =
4
x
+ 10
50°
2
694) m∠2 =
8
x
+ 4
28°
2
-120-
![Page 121: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/121.jpg)
695) m∠2 =
x
+ 51
42° 2
696) m∠2 =
x
+ 34
2
103°
697) m∠2 =
x
+ 58
2
130°
698) m∠2 =
x
+ 59
84°
2
699) m∠2 =
7
x
− 12
36°2
700) m∠2 =
4
x
+ 4
2
114°
-121-
![Page 122: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/122.jpg)
701) m∠2 =
8
x
+ 22
60°
2
702) m∠2 =
138 +
x
144°
2
703) m∠2 =
4
x
+ 4
120°
2
704) m∠2 =
4
x
− 40
70°
2
-122-
![Page 123: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/123.jpg)
705) m∠2 =
10
x
− 8
104°
2
706) m∠2 =
x
+ 137
74°
2
707) m∠2 =
3
x
+ 18
123°
2
708) m∠2 =
6
x
− 25
58°
2
-123-
![Page 124: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/124.jpg)
709) m∠2 =
x
+ 142
103°
2
710) m∠2 =
x
+ 107
44°
2
711) m∠2 =
x
+ 11
120°
2
712) m∠2 =
11
x
− 23
120°
2
-124-
![Page 125: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/125.jpg)
713) m∠2 =
18 + 10
x
62°2
714) m∠2 =
3
x
+ 21
63°
2
715) m∠2 =
x
+ 49
72°
2
716) m∠2 =
x
+ 88
140°
2
-125-
![Page 126: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/126.jpg)
717) m∠2 =
8
x
+ 34
114°
2
718) m∠2 =
x
+ 157
84°
2
719) m∠2 =
6
x
+ 22
68°
2
720) m∠2 =
x
+ 83
69°
2
-126-
![Page 127: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/127.jpg)
721) m∠2 =
x
+ 145
92°
2
722) m∠2 =
117 +
x
109°
2
723) m∠2 =
148 +
x
104°
2
724) m∠2 =
−8 + 9
x
103°
2
-127-
![Page 128: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/128.jpg)
725) m∠2 =
x
+ 70
74°
2
726) m∠2 =
x
+ 48
118°2
727) m∠2 =
x
+ 159
110°
2
728) m∠2 =
11
x
+ 6
77°
2
-128-
![Page 129: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/129.jpg)
729) m∠2 =
x
+ 88
42°
2
730) m∠2 =
x
+ 132
60°
2
731) m∠2 =
8
x
+ 32
30°
2
732) m∠2 =
11
x
− 18
114°
2
-129-
![Page 130: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/130.jpg)
733) m∠2 =
x
+ 75
71°
2
734) m∠2 =
6
x
− 20
142°
2
735) m∠2 =
x
+ 100
44°
2
736) m∠2 =
10
x
− 8
74°
2
-130-
![Page 131: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/131.jpg)
737) m∠2 =
11
x
− 3
80°
2
738) m∠2 =
x
+ 75
149°
2
739) m∠2 =
7
x
− 19
77°
2
740) m∠2 =
13
x
− 9
136°
2
-131-
![Page 132: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/132.jpg)
741) m∠2 =
x
+ 79
119°
2
742) m∠2 =
9
x
+ 14
59°
2
743) m∠2 =
4
x
− 8
142°2
744) m∠2 =
x
+ 121
53°
2
-132-
![Page 133: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/133.jpg)
745) m∠2 =
3
x
− 17
62°
2
746) m∠2 =
73 +
x
152° 2
747) m∠2 =
8
x
+ 4
111°
2
748) m∠2 =
x
+ 57
65°
2
-133-
![Page 134: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/134.jpg)
749) m∠2 =
x
+ 136
26°
2
750) m∠2 =
7
x
+ 1
60°
2
751) m∠2 =
7
x
− 27
68°
2
752) m∠2 =
13 + 11
x
57°
2
-134-
![Page 135: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/135.jpg)
753) m∠2 =
x
+ 134
60°
2
754) m∠2 =
x
+ 144
140°
2
755) m∠2 =
7
x
+ 1
44°
2
756) m∠2 =
4
x
− 3
74°
2
-135-
![Page 136: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/136.jpg)
757) m∠2 =
79 +
x
146°
2
758) m∠2 =
35 + 6
x
149°2
759) m∠2 =
x
+ 37
152°
2
760) m∠2 =
6
x
+ 18
42°
2
-136-
![Page 137: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/137.jpg)
761) m∠2 =
6
x
+ 10
59°
2
762) m∠2 =
x
+ 162
118°
2
763) m∠2 =
17 + 2
x
114°
2
764) m∠2 =
5
x
− 21
118°
2
-137-
![Page 138: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/138.jpg)
765) m∠2 =
8
x
+ 16
56°2
766) m∠2 =
2
x
+ 26
77°2
767) m∠2 =
x
+ 125
65°
2
768) m∠2 =
14
x
− 12
128°
2
-138-
![Page 139: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/139.jpg)
769) m∠2 =
9
x
− 24
69°
2
770) m∠2 =
14 + 6
x
46°
2
771) m∠2 =
x
+ 74
61°
2
772) m∠2 =
2
x
+ 18
70°
2
-139-
![Page 140: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/140.jpg)
773) m∠2 =
9
x
+ 22
53°
2
774) m∠2 =
9
x
− 11
73°
2
775) m∠2 =
x
+ 127
68°
2
776) m∠2 =
x
+ 110
111°
2
-140-
![Page 141: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/141.jpg)
777) m∠2 =
x
+ 77
152°
2
778) m∠2 =
101 +
x
86°
2
779) m∠2 =
x
+ 78
67°
2
780) m∠2 =
2
x
+ 22
70°
2
-141-
![Page 142: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/142.jpg)
781) m∠2 =
168 +
x
118°
2
782) m∠2 =
x
+ 146
70°2
783) m∠2 =
2
x
− 2
122°
2
784) m∠2 =
10
x
− 32
111°
2
-142-
![Page 143: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/143.jpg)
785) m∠2 =
5
x
+ 12
73°
2
786) m∠2 =
x
+ 159
128°
2
787) m∠2 =
x
+ 157
70°
2
788) m∠2 =
8
x
− 24
105°
2
-143-
![Page 144: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/144.jpg)
789) m∠2 = 4
x
134°
2
790) m∠2 =
2
x
+ 24
60°
2
791) m∠2 =
6
x
+ 17
58°
2
792) m∠2 =
7
x
+ 32
40°2
-144-
![Page 145: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/145.jpg)
793) m∠2 =
x
+ 167
53°2
794) m∠2 =
x
+ 65
68°
2
795) m∠2 =
3
x
+ 13
142°
2
796) m∠2 =
4
x
+ 31
122°
2
-145-
![Page 146: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/146.jpg)
797) m∠2 =
3
x
− 19
128°
2
798) m∠2 =
x
+ 105
44°
2
799) m∠2 =
11
x
+ 26
134°
2
800) m∠2 =
3
x
+ 38
50°
2
-146-
![Page 147: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/147.jpg)
MATHEMANIA.COM
Isosceles and equilateral triangles - Congruence - Missing angle
Find the x:
1)
77°
x
26°
2)
55°
x
70°
3)
66°
x
66°
4) 72°
x
72°
5) 70°
x
70°
6) 60°
x
60°
-1-
![Page 148: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/148.jpg)
7)
118°
x
31°
8)
90°
x
45°
9)
40°
x
40°
10) 50°
x
80°
11)
49°
x
82°
12)
55°
x
55°
13)
68°
x
68°
14)
70°
x
55°
-2-
![Page 149: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/149.jpg)
15)
67°
x
46°
16)
100°
x
40°
17)
25°
x
25°
18)
45°
x
90°
19)
51°
x
51°
20)
44°
x
44°
21)
65°
x
50°
22)
110°
x
35°
-3-
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23)
47°
x
86°
24) 53°
x
74°
25)
75°
x
30°
26)
75°
x
75°
27)
30°
x
75°
28)
30°
x
30°
29)
35°
x
35°
30) 54°
x
54°
-4-
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31)
32°
x
74°
32)
34°
x
73°
33)
45°
x
45°
34)
42°
x
96°
35)
40°
x
100°
36)
65°
x
65°
37) 40°
x
70°
38)
28°
x
76°
-5-
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39)
41°
x
41°
40)
53°
x
53°
41)
36°
x
72°
42)
43°
x
94°
43) 50°
x
50°
44)
70°
x
40°
45)
44°
x
68°
46)
35°
x
110°
-6-
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47)
32°
x
116°
48) 42°
x
69°
49) 94°
x
43°
50)
29°
x
29°
51)
41°
x
98°
52)
31°
x
31°
53)
42°
x
42°
54)
48°
x
48°
-7-
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55)
74°
x
53°
56)
44°
x
92°
57)
51°
x
78°
58) 46°
x
46°
59)
73°
x
34°
60)
71°
x
71°
61)
30°
x
120°
62)
67°
x
67°
-8-
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63)
52°
x
76°
64)
50°
x
65°
65)
48°
x
84°
66)
66°
x
48°
67) 74°
x
74°
68)
69°
x
69°
69)
120°
x
30°
70) 26°
x
77°
-9-
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71)
72°
x
54°
72)
116°
x
32°
73)
37°
x
106°
74)
38°
x
104°
75) 126°
x
27°
76)
46°
x
88°
77) 86°
x
47°
78)
48°
x
66°
-10-
![Page 157: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/157.jpg)
79)
29°
x
122°
80)
82°
x
49°
81)
54°
x
72°
82)
88°
x
46°
83)
77°
x
77°
84)
74°
x
32°
85)
114°
x
33°
86)
78°
x
51°
-11-
![Page 158: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/158.jpg)
87)
76°
x
76°
88)
71°
x
38°
89)
80°
x
50°
90)
73°
x
73°
91)
39°
x
102°
92)
98°
x
41°
93)
27°
x
27°
94)
92°
x
44°
-12-
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95)
76°
x
28°
96)
96°
x
42°
97)
49°
x
49°
98)
69°
x
42°
99)
112°
x
34°
100) 52°
x
52°
-13-
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101)
44°
x
92°
102)
65°
x
50°
103)
60°
x
60°
104)
54°
x
54°
105)
32°
x
32°
106)
50°
x
50°
-14-
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107) 54°
x
72°
108)
48°
x
84°
109)
68°
x
44°
110)
73°
x
34°
111)
128°
x
26°
112)
55°
x
70°
-15-
![Page 162: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/162.jpg)
113)
66°
x
66°
114)
45°
x
90°
115)
70°
x
70°
116)
69°
x
42°
117)
30°
x
75°
118)
124°
x
28°
-16-
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119) 40°
x
100°
120)
45°
x
45°
121)
52°
x
76°
122) 65°
x
65°
123)
40°
x
70°
124)
26°
x
77°
-17-
![Page 164: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/164.jpg)
125)
38°
x
71°
126)
42°
x
42°
127)
42°
x
96°
128)
50°
x
80°
129)
30°
x
120°
130)
34°
x
73°
-18-
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131)
30°
x
30°
132)
37°
x
106°
133)
67°
x
67°
134)
47°
x
86°
135)
90°
x
45°
136)
43°
x
43°
-19-
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137)
42°
x
69°
138)
46°
x
46°
139)
94°
x
43°
140)
28°
x
76°
141)
46°
x
88°
142)
35°
x
35°
-20-
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143) 55°
x
55°
144)
75°
x
75°
145)
25°
x
25°
146)
38°
x
104°
147)
44°
x
44°
148)
44°
x
68°
-21-
![Page 168: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/168.jpg)
149)
40°
x
40°
150)
51°
x
78°
151)
86°
x
47°
152)
75°
x
30°
153)
29°
x
29°
154)
35°
x
110°
-22-
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155) 41°
x
98°
156)
47°
x
47°
157)
48°
x
66°
158)
33°
x
114°
159)
66°
x
48°
160) 50°
x
65°
-23-
![Page 170: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/170.jpg)
161)
70°
x
55°
162)
76°
x
52°
163)
78°
x
51°
164)
69°
x
69°
165)
76°
x
76°
166)
72°
x
54°
-24-
![Page 171: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/171.jpg)
167)
74°
x
53°
168)
72°
x
72°
169)
71°
x
38°
170) 98°
x
41°
171)
46°
x
67°
172)
43°
x
94°
-25-
![Page 172: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/172.jpg)
173)
80°
x
50°
174)
82°
x
49°
175) 70°
x
40°
176)
67°
x
46°
177)
74°
x
32°
178)
39°
x
102°
-26-
![Page 173: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/173.jpg)
179) 48°
x
48°
180)
74°
x
74°
181) 72°
x
36°
182)
77°
x
77°
183) 73°
x
73°
184)
32°
x
74°
-27-
![Page 174: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/174.jpg)
185)
31°
x
31°
186)
118°
x
31°
187)
49°
x
49°
188)
100°
x
40°
189)
88°
x
46°
190)
112°
x
34°
-28-
![Page 175: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/175.jpg)
191)
71°
x
71°
192)
51°
x
51°
193)
53°
x
53°
194)
116°
x
32°
195)
120°
x
30°
196)
52°
x
52°
-29-
![Page 176: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/176.jpg)
197)
36°
x
72°
198)
41°
x
41°
199)
26°
x
26°
200)
31°
x
118°
201)
80°
x
50°
202)
x
115°
65°
-30-
![Page 177: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/177.jpg)
203)
75°
x
30°
204) 54°
x
72°
205) 69°
x
69°
206)
x
150°
75°
207)
60°
x
60°
208)
x
140°
40°
-31-
![Page 178: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/178.jpg)
209)
86°
x
133°
210)
90°
x
45°
211)
74°
x
53°
212)
40°
x
110°
213)
68°
x
68°
214)
65°
x
50°
-32-
![Page 179: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/179.jpg)
215)
71°
x
38°
216)
x
120°
60°
217) 30°
x
30°
218)
94°
x
137°
219)
96°
x
42°
220)
70°
x
55°
-33-
![Page 180: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/180.jpg)
221)
x
110°
55°
222)
53°
x
74°
223)
67°
x
67°
224) 70°
x
70°
225)
x
142°
104°
226)
92°
x
44°
-34-
![Page 181: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/181.jpg)
227)
48°
x
114°
228)
55°
x
110°
229)
x
145°
35°
230) 50°
x
65°
231)
74°
x
32°
232)
40°
x
70°
-35-
![Page 182: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/182.jpg)
233)
x
140°
100°
234)
100°
x
140°
235)
x
108°
72°
236)
88°
x
46°
237)
55°
x
55°
238)
x
130°
50°
-36-
![Page 183: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/183.jpg)
239)
73°
x
34°
240)
x
110°
70°
241)
77°
x
77°
242)
75°
x
105°
243)
29°
x
151°
244)
x
138°
96°
-37-
![Page 184: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/184.jpg)
245)
84°
x
48°
246)
60°
x
120°
247)
55°
x
70°
248)
x
140°
70°
249)
50°
x
80°
250)
50°
x
50°
-38-
![Page 185: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/185.jpg)
251)
69°
x
42°
252)
70°
x
140°
253)
71°
x
71°
254)
114°
x
33°
255)
45°
x
45°
256)
46°
x
46°
-39-
![Page 186: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/186.jpg)
257)
70°
x
40°
258)
66°
x
66°
259) 122°
x
29°
260) 120°
x
30°
261)
x
144°
108°
262)
48°
x
84°
-40-
![Page 187: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/187.jpg)
263)
54°
x
108°
264)
47°
x
133°
265)
x
154°
128°
266)
118°
x
31°
267)
45°
x
90°
268)
43°
x
94°
-41-
![Page 188: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/188.jpg)
269)
35°
x
70°
270)
32°
x
106°
271)
112°
x
34°
272)
40°
x
80°
273)
52°
x
76°
274)
26°
x
103°
-42-
![Page 189: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/189.jpg)
275)
30°
x
75°
276)
48°
x
66°
277)
41°
x
98°
278)
54°
x
126°
279)
36°
x
72°
280)
76°
x
52°
-43-
![Page 190: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/190.jpg)
281)
x
136°
92°
282)
x
144°
72°
283)
30°
x
150°
284)
43°
x
43°
285)
44°
x
68°
286)
40°
x
40°
-44-
![Page 191: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/191.jpg)
287)
x
113°
46°
288)
27°
x
27°
289)
x
106°
32°
290)
47°
x
47°
291) 50°
x
115°
292)
x
146°
34°
-45-
![Page 192: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/192.jpg)
293)
46°
x
88°
294)
65°
x
65°
295)
75°
x
75°
296)
29°
x
29°
297)
25°
x
25°
298)
x
125°
55°
-46-
![Page 193: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/193.jpg)
299)
130°
x
25°
300)
74°
x
127°
301)
150°
x
120°
302)
115°
x
50°
303)
71°
x
76°
304)
84°
x
42°
-47-
![Page 194: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/194.jpg)
305)
26°
x
64°
306)
48°
x
48°
307)
125°
x
140°
308)
144°
x
108°
-48-
![Page 195: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/195.jpg)
309)
110°
x
145°
310)
117°
x
72°
311)
30°
x
120°
312)
134°
x
23°
313)
114°
x
42°
-49-
![Page 196: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/196.jpg)
314)
52°
x
154°
315)
58°
x
58°
316)
111°
x
66°
317)
60°
x
150°
-50-
![Page 197: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/197.jpg)
318)
84°
x
48°
319)
108°
x
54°
320)
72°
x
144°
321)
106°
x
122°
-51-
![Page 198: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/198.jpg)
322)
132°
x
138°
323)
114°
x
84°
324)
116°
x
76°
325)
26°
x
128°
-52-
![Page 199: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/199.jpg)
326)
42°
x
48°
327)
55°
x
110°
328)
72°
x
126°
329)
70°
x
70°
-53-
![Page 200: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/200.jpg)
330) 110°
x
140°
331)
128°
x
76°
332)
106°
x
61°
333)
119°
x
122°
-54-
![Page 201: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/201.jpg)
334)
103°
x
122°
335)
48°
x
132°
336)
112°
x
92°
337) 59°
x
28°
-55-
![Page 202: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/202.jpg)
338)
142°
x
76°
339)
62°
x
34°
340)
153°
x
153°
341)
148°
x
122°
342)
109°
x
104°
-56-
![Page 203: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/203.jpg)
343)
115°
x
70°
344)
154°
x
116°
345)
63°
x
54°
346)
68°
x
92°
-57-
![Page 204: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/204.jpg)
347)
118°
x
28°
348)
125°
x
110°
349)
71°
x
128°
350)
124°
x
146°
-58-
![Page 205: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/205.jpg)
351)
70°
x
140°
352)
73°
x
68°
353)
117°
x
108°
354)
76°
x
124°
-59-
![Page 206: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/206.jpg)
355) 120°
x
120°
356)
121°
x
76°
357)
121°
x
152°
358)
120°
x
60°
-60-
![Page 207: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/207.jpg)
359)
118°
x
73°
360) 56°
x
34°
361)
84°
x
132°
362)
130°
x
140°
-61-
![Page 208: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/208.jpg)
363)
70°
x
145°
364)
68°
x
134°
365)
134°
x
44°
366)
124°
x
136°
367)
70°
x
50°
-62-
![Page 209: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/209.jpg)
368) 56°
x
146°
369)
110°
x
100°
370)
73°
x
56°
371)
116°
x
128°
-63-
![Page 210: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/210.jpg)
372)
28°
x
56°
373)
70°
x
40°
374)
122°
x
119°
375)
71°
x
52°
-64-
![Page 211: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/211.jpg)
376)
108°
x
108°
377)
107°
x
118°
378)
104°
x
118°
379)
113°
x
136°
-65-
![Page 212: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/212.jpg)
380)
134°
x
92°
381)
42°
x
132°
382)
140°
x
130°
383)
64°
x
109°
-66-
![Page 213: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/213.jpg)
384)
55°
x
40°
385)
119°
x
74°
386)
146°
x
124°
387)
110°
x
80°
-67-
![Page 214: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/214.jpg)
388)
64°
x
104°
389)
152°
x
62°
390) 63°
x
72°
391)
67°
x
88°
-68-
![Page 215: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/215.jpg)
392)
125°
x
70°
393)
69°
x
96°
394)
158°
x
22°
395)
72°
x
108°
-69-
![Page 216: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/216.jpg)
396)
108°
x
72°
397)
60°
x
120°
398)
105°
x
120°
399)
75°
x
120°
-70-
![Page 217: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/217.jpg)
400)
86°
x
133°
401) m∠2 =
6
x
+ 2
80°
2
8
402) m∠2 =
x
+ 65
60°2
−5
403) m∠2 =
18
x
− 6
30°2
7
404) m∠2 =
6
x
+ 12
60°
2
8
405) m∠2 =
10 + 5
x
65° 2
8
-71-
![Page 218: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/218.jpg)
406) m∠2 =
x
+ 78
73°
2
−5
407) m∠2 =
16
x
− 4
60°2
4
408) m∠2 =
66 +
x
60°
2
−6
409) m∠2 =
27
x
− 2
37°
2
4
410) m∠2 =
x
+ 44
102° 2
−5
411) m∠2 =
x
+ 92
46°
2
−4
-72-
![Page 219: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/219.jpg)
412) m∠2 =
x
+ 64
60°2
−4
413) m∠2 =
x
+ 54
65°
2
−4
414) m∠2 =
x
+ 98
45°2
−8
415) m∠2 =
7
x
− 3
25°2
4
416) m∠2 =
16
x
+ 6
70°2
4
417) m∠2 =
x
+ 68
60° 2
−8
-73-
![Page 220: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/220.jpg)
418) m∠2 =
7
x
+ 2
75°
2
4
419) m∠2 =
17
x
+ 2
55°
2
4
420) m∠2 =
14
x
− 1
69°
2
5
421) m∠2 =
11
x
+ 5
60°
2
5
422) m∠2 =
x
+ 60
55°
2
−5
423) m∠2 =
7
x
+ 3
52°
2
7
-74-
![Page 221: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/221.jpg)
424) m∠2 =
x
+ 52
45°
2
−7
425) m∠2 =
x
+ 57
65°
2
−7
426) m∠2 =
8
x
+ 4
60°
2
7
427) m∠2 =
x
+ 77
70°
2
−7
428) m∠2 =
16
x
− 3
77°
2
5
429) m∠2 =
4
x
− 2
120°2
8
-75-
![Page 222: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/222.jpg)
430) m∠2 =
x
+ 56
82°
2
−7
431) m∠2 =
x
+ 67
60°
2
−7
432) m∠2 =
x
+ 54
48°2
−6
433) m∠2 =
10
x
− 8
54°
2
8
434) m∠2 =
x
+ 106
41°
2
−8
435) m∠2 =
7
x
+ 11
67°
2
8
-76-
![Page 223: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/223.jpg)
436) m∠2 =
11
x
− 1
65°
2
6
437) m∠2 =
81 +
x
73°2
−8
438) m∠2 =
40 +
x
116°
2
−8
439) m∠2 =
x
+ 54
88° 2
−8
440) m∠2 = 10
x
60°
2
6
441) m∠2 =
x
+ 51
92°
2
−7
-77-
![Page 224: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/224.jpg)
442) m∠2 =
2 + 19
x
51°
2
4
443) m∠2 =
x
+ 87
50°
2
−7
444) m∠2 =
x
+ 59
55°
2
−4
445) m∠2 = 5
x
40°
2
8
446) m∠2 =
x
+ 51
68° 2
−7
447) m∠2 =
x
+ 34
75°
2
−4
-78-
![Page 225: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/225.jpg)
448) m∠2 =
9
x
+ 4
100°
2
4
449) m∠2 =
x
+ 96
46°
2
−8
450) m∠2 =
x
+ 51
46°2
−5
451) m∠2 =
x
+ 60
52°
2
−8
452) m∠2 =
x
+ 97
44°
2
−5
453) m∠2 =
x
+ 58
65°
2
−8
-79-
![Page 226: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/226.jpg)
454) m∠2 =
5
x
+ 6
46° 2
8
455) m∠2 =
x
+ 74
70°
2
−4
456) m∠2 =
14
x
+ 5
75°
2
5
457) m∠2 =
x
+ 46
40°
2
−6
458) m∠2 = 14
x
48°
2
6
459) m∠2 =
−2 + 11
x
42°
2
4
-80-
![Page 227: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/227.jpg)
460) m∠2 =
x
+ 33
76°
2
−5
461) m∠2 =
4
x
− 1
27°
2
7
462) m∠2 =
10
x
+ 6
66°2
6
463) m∠2 =
5
x
+ 9
73°
2
5
464) m∠2 =
10
x
+ 2
72°
2
7
465) m∠2 =
8
x
− 2
104°2
5
-81-
![Page 228: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/228.jpg)
466) m∠2 =
x
+ 99
44°2
−7
467) m∠2 =
17
x
+ 7
44°2
5
468) m∠2 =
8 + 6
x
50°
2
7
469) m∠2 =
6
x
+ 13
55°
2
7
470) m∠2 =
x
+ 47
69°2
−5
471) m∠2 =
6
x
+ 2
68°2
7
-82-
![Page 229: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/229.jpg)
472) m∠2 =
11
x
− 3
76° 2
5
473) m∠2 =
x
+ 48
40°
2
−8
474) m∠2 =
x
+ 77
38°
2
−6
475) m∠2 =
7
x
+ 4
46°2
6
476) m∠2 =
13
x
− 8
42°2
8
477) m∠2 =
x
+ 105
40°2
−5
-83-
![Page 230: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/230.jpg)
478) m∠2 =
14
x
+ 6
45°
2
6
479) m∠2 =
x
+ 83
30°
2
−8
480) m∠2 =
x
+ 37
120°
2
−7
481) m∠2 =
9
x
+ 5
65°2
5
482) m∠2 =
x
+ 44
40°
2
−4
483) m∠2 =
x
+ 76
54°2
−4
-84-
![Page 231: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/231.jpg)
484) m∠2 =
x
+ 80
75°
2
−5
485) m∠2 =
18
x
+ 1
34°2
4
486) m∠2 =
x
+ 80
36°
2
−8
487) m∠2 =
14
x
− 6
37°
2
8
488) m∠2 =
x
+ 95
45°
2
−5
489) m∠2 =
5
x
+ 10
50°2
8
-85-
![Page 232: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/232.jpg)
490) m∠2 =
9
x
+ 4
49° 2
5
491) m∠2 =
12 + 10
x
44°2
8
492) m∠2 =
x
+ 78
32°2
−4
493) m∠2 =
x
+ 70
48°2
−4
494) m∠2 = 18
x
45°2
5
495) m∠2 =
11
x
+ 1
90°
2
4
-86-
![Page 233: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/233.jpg)
496) m∠2 =
9
x
+ 6
51°
2
8
497) m∠2 =
x
+ 108
38°
2
−4
498) m∠2 =
49 +
x
94°
2
−6
499) m∠2 =
x
+ 70
50°
2
−5
500) m∠2 =
x
+ 88
50°
2
−8
501) m∠2 =
101 +
x
42°2
−5
-87-
![Page 234: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/234.jpg)
502) m∠2 =
x
+ 88
48°
2
−4
503) m∠2 =
−2 + 23
x
45°
2
4
504) m∠2 =
x
+ 91
48°2
−7
505) m∠2 =
60 +
x
54°
2
−6
506) m∠2 =
10
x
− 3
77°
2
8
507) m∠2 =
17
x
− 3
50°2
4
-88-
![Page 235: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/235.jpg)
508) m∠2 =
9
x
+ 11
50°2
6
509) m∠2 =
8
x
− 4
60°2
8
510) m∠2 =
8
x
+ 4
60°2
7
511) m∠2 =
3
x
+ 4
25°2
7
512) m∠2 =
x
+ 46
40°
2
−6
513) m∠2 =
x
+ 67
60°
2
−7
-89-
![Page 236: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/236.jpg)
514) m∠2 =
7
x
− 5
44°
2
7
515) m∠2 =
7
x
+ 1
43° 2
6
516) m∠2 =
x
+ 55
49°2
−6
517) m∠2 =
16
x
+ 6
55°2
4
518) m∠2 =
x
+ 59
70°
2
−4
519) m∠2 =
x
+ 57
74°
2
−4
-90-
![Page 237: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/237.jpg)
520) m∠2 =
11
x
+ 5
60°
2
5
521) m∠2 =
11
x
− 6
60°2
6
522) m∠2 =
x
+ 124
30°2
−4
523) m∠2 =
6 + 7
x
73°
2
4
524) m∠2 =
5
x
+ 5
40°
2
7
525) m∠2 =
x
+ 96
45°
2
−6
-91-
![Page 238: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/238.jpg)
526) m∠2 =
70 +
x
66°2
−4
527) m∠2 =
x
+ 98
45°2
−8
528) m∠2 =
9
x
+ 8
50°
2
8
529) m∠2 =
50 +
x
90°
2
−5
530) m∠2 =
x
+ 45
100°2
−5
531) m∠2 =
x
+ 32
76°
2
−4
-92-
![Page 239: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/239.jpg)
532) m∠2 =
−4 + 20
x
76°2
4
533) m∠2 =
x
+ 37
29° 2
−8
534) m∠2 =
26
x
− 4
40°
2
4
535) m∠2 =
x
+ 54
86°
2
−7
536) m∠2 =
x
+ 106
41°
2
−8
537) m∠2 =
10
x
− 3
47° 2
5
-93-
![Page 240: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/240.jpg)
538) m∠2 =
x
+ 59
55° 2
−4
539) m∠2 =
12
x
+ 7
70°
2
4
540) m∠2 =
66 +
x
60°2
−6
541) m∠2 =
x
+ 76
72°
2
−4
542) m∠2 =
11
x
+ 5
71°
2
6
543) m∠2 =
6
x
− 2
70°
2
7
-94-
![Page 241: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/241.jpg)
544) m∠2 =
10
x
+ 7
67°
2
6
545) m∠2 =
7
x
+ 8
43°
2
5
546) m∠2 =
x
+ 89
49°2
−7
547) m∠2 =
9
x
+ 1
70°
2
6
548) m∠2 =
x
+ 64
60°
2
−4
549) m∠2 =
x
+ 68
60°
2
−8
-95-
![Page 242: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/242.jpg)
550) m∠2 =
x
+ 75
44°
2
−7
551) m∠2 =
x
+ 35
75°
2
−5
552) m∠2 =
x
+ 65
60°2
−5
553) m∠2 =
−3 + 8
x
90° 2
6
554) m∠2 =
x
+ 97
45°
2
−7
-96-
![Page 243: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/243.jpg)
555) m∠2 =
9
x
− 3
78°
2
6
556) m∠2 =
x
+ 108
40°
2
−8
557) m∠2 =
x
+ 50
69°
2
−8
558) m∠2 =
x
+ 83
77°2
−6
559) m∠2 =
x
+ 45
40°
2
−5
560) m∠2 =
x
+ 51
86°
2
−4
-97-
![Page 244: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/244.jpg)
561) m∠2 =
58 +
x
74°
2
−5
562) m∠2 =
8 + 9
x
38°
2
7
563) m∠2 =
15
x
+ 6
66°2
4
564) m∠2 =
x
+ 71
65°2
−6
565) m∠2 =
4 + 14
x
60°
2
4
566) m∠2 =
18
x
+ 10
31°
2
6
-98-
![Page 245: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/245.jpg)
567) m∠2 = 6
x
30°
2
5
568) m∠2 =
6
x
+ 3
45°
2
7
569) m∠2 =
54 +
x
82°
2
−5
570) m∠2 =
x
+ 32
124°
2
−4
571) m∠2 =
7
x
+ 10
66°
2
8
572) m∠2 =
15
x
− 3
39°
2
7
-99-
![Page 246: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/246.jpg)
573) m∠2 =
13
x
− 3
75°
2
6
574) m∠2 =
5
x
+ 5
90°
2
8
575) m∠2 =
6
x
+ 9
78°
2
7
576) m∠2 =
x
+ 44
100°2
−4
577) m∠2 =
4
x
− 2
75°
2
8
578) m∠2 =
11
x
− 3
98°
2
4
-100-
![Page 247: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/247.jpg)
579) m∠2 =
2
x
+ 11
130°2
7
580) m∠2 =
x
+ 48
100°
2
−8
581) m∠2 =
−5 + 10
x
90° 2
5
582) m∠2 =
14
x
− 3
74°
2
4
583) m∠2 =
8
x
+ 6
71°
2
4
584) m∠2 =
6 + 4
x
77°
2
5
-101-
![Page 248: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/248.jpg)
585) m∠2 =
6
x
− 8
40° 2
8
586) m∠2 =
7
x
+ 5
100°
2
5
587) m∠2 =
13
x
− 3
82°
2
4
588) m∠2 =
8
x
+ 2
65°
2
6
589) m∠2 =
x
+ 40
73° 2
−6
590) m∠2 =
14
x
+ 3
73°
2
5
-102-
![Page 249: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/249.jpg)
591) m∠2 =
x
+ 33
26°2
−7
592) m∠2 =
7
x
− 3
67°
2
7
593) m∠2 =
x
+ 44
102° 2
−5
594) m∠2 =
6
x
− 4
104°2
7
595) m∠2 =
x
+ 51
92°
2
−7
596) m∠2 =
x
+ 78
70°2
−8
-103-
![Page 250: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/250.jpg)
597) m∠2 =
7
x
+ 13
69°
2
8
598) m∠2 =
x
+ 37
75°
2
−7
599) m∠2 =
x
+ 61
70° 2
−6
600) m∠2 =
10
x
+ 2
72°
2
7
601) m∠2 =
x
+ 73
65°
2
−8
602) m∠2 =
6
x
− 2
2140°
12
-104-
![Page 251: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/251.jpg)
603) m∠2 =
x
+ 50
71° 2
−12
604) m∠2 =
x
+ 83
77°2
−6
605) m∠2 =
x
+ 46
100°
2
−6
606) m∠2 =
x
+ 126
2
150°
−6
607) m∠2 =
x
+ 67
29°
2
−9
608) m∠2 =
x
+ 71
60°
2
−11
-105-
![Page 252: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/252.jpg)
609) m∠2 =
x
+ 126
60°
2
−6
610) m∠2 =
x
+ 68
2
120°
−8
611) m∠2 =
6
x
+ 1
55°
2
9
612) m∠2 =
11
x
+ 1
51°
2
7
613) m∠2 =
10
x
− 3
2
134°
7
614) m∠2 =
7
x
+ 4
60°2
8
-106-
![Page 253: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/253.jpg)
615) m∠2 =
10
x
− 7
73°
2
8
616) m∠2 =
15
x
− 4
2
148°
8
617) m∠2 =
3
x
+ 6
2
138°
12
618) m∠2 =
x
+ 36
120°
2
−6
619) m∠2 =
x
+ 40
75°
2
−10
620) m∠2 =
x
+ 72
60°
2
−12
-107-
![Page 254: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/254.jpg)
621) m∠2 =
6
x
− 4
2
88°
8
622) m∠2 =
92 +
x
50°
2
−12
623) m∠2 =
11
x
+ 4
55°
2
6
624) m∠2 =
x
+ 116
54°
2
−8
-108-
![Page 255: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/255.jpg)
625) m∠2 =
x
+ 79
2
140°
−9
626) m∠2 =
x
+ 42
75°
2
−12
627) m∠2 =
x
+ 134
2152°
−10
628) m∠2 =
6 + 6
x
60°
2
9
629) m∠2 =
7
x
− 10
2
120°
10
630) m∠2 =
x
+ 69
60°
2
−9
-109-
![Page 256: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/256.jpg)
631) m∠2 =
4
x
+ 7
2
94°
10
632) m∠2 =
9
x
+ 2
46°2
10
633) m∠2 =
x
+ 61
2
130°
−11
634) m∠2 = 10
x
60°
2
6
635) m∠2 =
5
x
+ 5
2
120°
11
636) m∠2 =
x
+ 61
65°2
−11
-110-
![Page 257: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/257.jpg)
637) m∠2 =
6
x
− 2
70°2
7
638) m∠2 =
x
+ 83
30°2
−8
639) m∠2 =
7
x
− 1
28°2
11
640) m∠2 =
x
+ 70
60°2
−10
641) m∠2 =
13
x
− 8
42°
2
8
642) m∠2 =
−6 + 12
x
42°
2
12
-111-
![Page 258: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/258.jpg)
643) m∠2 =
x
+ 54
2132°
−6
644) m∠2 =
4
x
+ 12
2
120°
12
645) m∠2 =
9
x
− 3
60°
2
7
646) m∠2 = 9
x
54°
2
6
-112-
![Page 259: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/259.jpg)
647) m∠2 =
x
+ 72
2
114°
−6
648) m∠2 =
x
+ 86
75°2
−11
649) m∠2 =
8
x
+ 14
35°
2
12
650) m∠2 =
x
+ 127
60°2
−7
651) m∠2 =
x
+ 155
116°2
−7
652) m∠2 =
x
+ 52
40° 2
−12
-113-
![Page 260: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/260.jpg)
653) m∠2 =
15
x
− 1
76°
2
7
654) m∠2 =
15
x
+ 2
44°2
6
655) m∠2 =
x
+ 77
2
138°
−8
656) m∠2 =
8
x
+ 11
30°2
8
657) m∠2 =
5
x
+ 13
74°
2
8
658) m∠2 =
x
+ 68
60°
2
−8
-114-
![Page 261: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/261.jpg)
659) m∠2 =
8
x
+ 3
30°
2
9
660) m∠2 =
x
+ 161
124°
2
−9
661) m∠2 =
x
+ 107
40°
2
−7
662) m∠2 =
9
x
− 11
46°
2
11
663) m∠2 =
11
x
+ 12
40°
2
8
664) m∠2 =
x
+ 64
52°
2
−12
-115-
![Page 262: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/262.jpg)
665) m∠2 = 6
x
2
132°
11
666) m∠2 =
149 +
x
71°
2
−7
667) m∠2 =
11
x
+ 9
30°2
6
668) m∠2 =
x
+ 131
2
150°
−11
669) m∠2 =
7
x
+ 5
47°
2
6
670) m∠2 =
x
+ 72
2
120°
−12
-116-
![Page 263: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/263.jpg)
671) m∠2 =
11
x
− 6
2
120°
6
672) m∠2 =
x
+ 120
54°
2
−12
673) m∠2 = 8
x
54°2
9
674) m∠2 =
5
x
− 10
50°
2
12
675) m∠2 =
9
x
+ 11
2
115°
6
676) m∠2 =
x
+ 73
48°
2
−7
-117-
![Page 264: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/264.jpg)
677) m∠2 =
9
x
− 9
36°
2
9
678) m∠2 =
21
x
+ 4
2
155°
6
679) m∠2 =
23
x
+ 10
32°2
6
680) m∠2 =
x
+ 37
31° 2
−6
681) m∠2 =
7
x
− 10
60°
2
10
682) m∠2 =
x
+ 107
50°
2
−7
-118-
![Page 265: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/265.jpg)
683) m∠2 = 5
x
2
110°
8
684) m∠2 =
3
x
+ 13
2 140°
9
685) m∠2 =
6
x
+ 2
44°
2
11
686) m∠2 =
x
+ 86
32°2
−12
687) m∠2 =
14 + 17
x
120°2
8
688) m∠2 =
x
+ 52
46°
2
−6
-119-
![Page 266: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/266.jpg)
689) m∠2 =
x
+ 85
52°2
−9
690) m∠2 =
x
+ 54
2 135°
−9
691) m∠2 =
3
x
+ 8
71°
2
10
692) m∠2 =
x
+ 125
50°
2
−10
693) m∠2 =
4
x
+ 10
50°
2
10
694) m∠2 =
8
x
+ 4
28°
2
9
-120-
![Page 267: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/267.jpg)
695) m∠2 =
x
+ 51
42° 2
−9
696) m∠2 =
x
+ 34
2
103°
−8
697) m∠2 =
x
+ 58
2
130°
−8
698) m∠2 =
x
+ 59
84°
2
−11
699) m∠2 =
7
x
− 12
36°2
12
700) m∠2 =
4
x
+ 4
2
114°
11
-121-
![Page 268: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/268.jpg)
701) m∠2 =
8
x
+ 22
60°
2
16
702) m∠2 =
138 +
x
144°
2
−12
703) m∠2 =
4
x
+ 4
120°
2
14
704) m∠2 =
4
x
− 40
70°
2
20
-122-
![Page 269: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/269.jpg)
705) m∠2 =
10
x
− 8
104°
2
16
706) m∠2 =
x
+ 137
74°
2
−15
707) m∠2 =
3
x
+ 18
123°
2
16
708) m∠2 =
6
x
− 25
58°
2
17
-123-
![Page 270: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/270.jpg)
709) m∠2 =
x
+ 142
103°
2
−14
710) m∠2 =
x
+ 107
44°
2
−19
711) m∠2 =
x
+ 11
120°
2
19
712) m∠2 =
11
x
− 23
120°
2
13
-124-
![Page 271: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/271.jpg)
713) m∠2 =
18 + 10
x
62°2
10
714) m∠2 =
3
x
+ 21
63°
2
17
715) m∠2 =
x
+ 49
72°
2
−13
716) m∠2 =
x
+ 88
140°
2
−18
-125-
![Page 272: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/272.jpg)
717) m∠2 =
8
x
+ 34
114°
2
13
718) m∠2 =
x
+ 157
84°
2
−19
719) m∠2 =
6
x
+ 22
68°
2
19
720) m∠2 =
x
+ 83
69°
2
−17
-126-
![Page 273: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/273.jpg)
721) m∠2 =
x
+ 145
92°
2
−11
722) m∠2 =
117 +
x
109°
2
−13
723) m∠2 =
148 +
x
104°
2
−20
724) m∠2 =
−8 + 9
x
103°
2
18
-127-
![Page 274: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/274.jpg)
725) m∠2 =
x
+ 70
74°
2
−12
726) m∠2 =
x
+ 48
118°2
−17
727) m∠2 =
x
+ 159
110°
2
−19
728) m∠2 =
11
x
+ 6
77°
2
10
-128-
![Page 275: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/275.jpg)
729) m∠2 =
x
+ 88
42°
2
−19
730) m∠2 =
x
+ 132
60°
2
−12
731) m∠2 =
8
x
+ 32
30°
2
11
732) m∠2 =
11
x
− 18
114°
2
12
-129-
![Page 276: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/276.jpg)
733) m∠2 =
x
+ 75
71°
2
−11
734) m∠2 =
6
x
− 20
142°
2
12
735) m∠2 =
x
+ 100
44°
2
−12
736) m∠2 =
10
x
− 8
74°
2
13
-130-
![Page 277: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/277.jpg)
737) m∠2 =
11
x
− 3
80°
2
13
738) m∠2 =
x
+ 75
149°
2
−13
739) m∠2 =
7
x
− 19
77°
2
11
740) m∠2 =
13
x
− 9
136°
2
11
-131-
![Page 278: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/278.jpg)
741) m∠2 =
x
+ 79
119°
2
−15
742) m∠2 =
9
x
+ 14
59°
2
10
743) m∠2 =
4
x
− 8
142°2
15
744) m∠2 =
x
+ 121
53°
2
−15
-132-
![Page 279: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/279.jpg)
745) m∠2 =
3
x
− 17
62°
2
17
746) m∠2 =
73 +
x
152° 2
−17
747) m∠2 =
8
x
+ 4
111°
2
10
748) m∠2 =
x
+ 57
65°
2
−17
-133-
![Page 280: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/280.jpg)
749) m∠2 =
x
+ 136
26°
2
−20
750) m∠2 =
7
x
+ 1
60°
2
17
751) m∠2 =
7
x
− 27
68°
2
17
752) m∠2 =
13 + 11
x
57°
2
10
-134-
![Page 281: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/281.jpg)
753) m∠2 =
x
+ 134
60°
2
−14
754) m∠2 =
x
+ 144
140°
2
−14
755) m∠2 =
7
x
+ 1
44°
2
13
756) m∠2 =
4
x
− 3
74°
2
16
-135-
![Page 282: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/282.jpg)
757) m∠2 =
79 +
x
146°
2
−11
758) m∠2 =
35 + 6
x
149°2
19
759) m∠2 =
x
+ 37
152°
2
19
760) m∠2 =
6
x
+ 18
42°
2
20
-136-
![Page 283: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/283.jpg)
761) m∠2 =
6
x
+ 10
59°
2
11
762) m∠2 =
x
+ 162
118°
2
−10
763) m∠2 =
17 + 2
x
114°
2
20
764) m∠2 =
5
x
− 21
118°
2
11
-137-
![Page 284: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/284.jpg)
765) m∠2 =
8
x
+ 16
56°2
12
766) m∠2 =
2
x
+ 26
77°2
13
767) m∠2 =
x
+ 125
65°
2
−15
768) m∠2 =
14
x
− 12
128°
2
11
-138-
![Page 285: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/285.jpg)
769) m∠2 =
9
x
− 24
69°
2
12
770) m∠2 =
14 + 6
x
46°
2
13
771) m∠2 =
x
+ 74
61°
2
−16
772) m∠2 =
2
x
+ 18
70°
2
16
-139-
![Page 286: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/286.jpg)
773) m∠2 =
9
x
+ 22
53°
2
14
774) m∠2 =
9
x
− 11
73°
2
15
775) m∠2 =
x
+ 127
68°
2
−15
776) m∠2 =
x
+ 110
111°
2
−14
-140-
![Page 287: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/287.jpg)
777) m∠2 =
x
+ 77
152°
2
−15
778) m∠2 =
101 +
x
86°
2
−15
779) m∠2 =
x
+ 78
67°
2
−10
780) m∠2 =
2
x
+ 22
70°
2
14
-141-
![Page 288: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/288.jpg)
781) m∠2 =
168 +
x
118°
2
−19
782) m∠2 =
x
+ 146
70°2
−16
783) m∠2 =
2
x
− 2
122°
2
17
784) m∠2 =
10
x
− 32
111°
2
17
-142-
![Page 289: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/289.jpg)
785) m∠2 =
5
x
+ 12
73°
2
10
786) m∠2 =
x
+ 159
128°
2
−17
787) m∠2 =
x
+ 157
70°
2
−17
788) m∠2 =
8
x
− 24
105°
2
18
-143-
![Page 290: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/290.jpg)
789) m∠2 = 4
x
134°
2
11
790) m∠2 =
2
x
+ 24
60°
2
18
791) m∠2 =
6
x
+ 17
58°
2
10
792) m∠2 =
7
x
+ 32
40°2
14
-144-
![Page 291: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/291.jpg)
793) m∠2 =
x
+ 167
53°2
−19
794) m∠2 =
x
+ 65
68°
2
−19
795) m∠2 =
3
x
+ 13
142°
2
13
796) m∠2 =
4
x
+ 31
122°
2
18
-145-
![Page 292: Isosceles and equilateral triangles - Congruence - Missing angle · x ∠ ∠ ∠ ∠ ∠](https://reader035.fdocuments.net/reader035/viewer/2022070112/6055d2638f03b978e51225cd/html5/thumbnails/292.jpg)
797) m∠2 =
3
x
− 19
128°
2
19
798) m∠2 =
x
+ 105
44°
2
−17
799) m∠2 =
11
x
+ 26
134°
2
10
800) m∠2 =
3
x
+ 38
50°
2
14
-146-