Section 9.8 Trigonometric Ratios Trigonometric Ratio A ratio of the lengths of two sides of a right...
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Transcript of Section 9.8 Trigonometric Ratios Trigonometric Ratio A ratio of the lengths of two sides of a right...
![Page 1: Section 9.8 Trigonometric Ratios Trigonometric Ratio A ratio of the lengths of two sides of a right triangle.](https://reader036.fdocuments.net/reader036/viewer/2022062305/56649f1e5503460f94c35ab6/html5/thumbnails/1.jpg)
![Page 2: Section 9.8 Trigonometric Ratios Trigonometric Ratio A ratio of the lengths of two sides of a right triangle.](https://reader036.fdocuments.net/reader036/viewer/2022062305/56649f1e5503460f94c35ab6/html5/thumbnails/2.jpg)
![Page 3: Section 9.8 Trigonometric Ratios Trigonometric Ratio A ratio of the lengths of two sides of a right triangle.](https://reader036.fdocuments.net/reader036/viewer/2022062305/56649f1e5503460f94c35ab6/html5/thumbnails/3.jpg)
Section 9.8
Trigonometric Ratios
![Page 4: Section 9.8 Trigonometric Ratios Trigonometric Ratio A ratio of the lengths of two sides of a right triangle.](https://reader036.fdocuments.net/reader036/viewer/2022062305/56649f1e5503460f94c35ab6/html5/thumbnails/4.jpg)
Trigonometric Ratio
A ratio of the lengths of two sides of a right triangle.
![Page 5: Section 9.8 Trigonometric Ratios Trigonometric Ratio A ratio of the lengths of two sides of a right triangle.](https://reader036.fdocuments.net/reader036/viewer/2022062305/56649f1e5503460f94c35ab6/html5/thumbnails/5.jpg)
How do I remember this?
SOHCAHTOASOHCAHTOA
![Page 6: Section 9.8 Trigonometric Ratios Trigonometric Ratio A ratio of the lengths of two sides of a right triangle.](https://reader036.fdocuments.net/reader036/viewer/2022062305/56649f1e5503460f94c35ab6/html5/thumbnails/6.jpg)
Find sin A
Find cos A
Find tan A
SOHCAHTOA
![Page 7: Section 9.8 Trigonometric Ratios Trigonometric Ratio A ratio of the lengths of two sides of a right triangle.](https://reader036.fdocuments.net/reader036/viewer/2022062305/56649f1e5503460f94c35ab6/html5/thumbnails/7.jpg)
Find sin B
Find cos B
Find tan B
SOHCAHTOA
63
84
105
![Page 8: Section 9.8 Trigonometric Ratios Trigonometric Ratio A ratio of the lengths of two sides of a right triangle.](https://reader036.fdocuments.net/reader036/viewer/2022062305/56649f1e5503460f94c35ab6/html5/thumbnails/8.jpg)
Find the value on a calculator to the nearest ten thousandth.
sin 19°
cos 51°
tan 24°
a. sin 63°
b. cos 14°
c. tan 41°
Answer: 0.8910
Answer: 0.9703
Answer: 0.8693
![Page 9: Section 9.8 Trigonometric Ratios Trigonometric Ratio A ratio of the lengths of two sides of a right triangle.](https://reader036.fdocuments.net/reader036/viewer/2022062305/56649f1e5503460f94c35ab6/html5/thumbnails/9.jpg)
Find the missing measure. Round to the
nearest tenth.
SOHCAHTOA
![Page 10: Section 9.8 Trigonometric Ratios Trigonometric Ratio A ratio of the lengths of two sides of a right triangle.](https://reader036.fdocuments.net/reader036/viewer/2022062305/56649f1e5503460f94c35ab6/html5/thumbnails/10.jpg)
Find the missing measure. Round to the
nearest tenth.
SOHCAHTOA
![Page 11: Section 9.8 Trigonometric Ratios Trigonometric Ratio A ratio of the lengths of two sides of a right triangle.](https://reader036.fdocuments.net/reader036/viewer/2022062305/56649f1e5503460f94c35ab6/html5/thumbnails/11.jpg)
Architecture A tourist visiting the Petronas Towers in Kuala Lumpur, Malaysia, stands 261 feet away from their base. She looks at the top at an angle of 80° with the ground. How tall are the Towers?
SOHCAHTOA
![Page 12: Section 9.8 Trigonometric Ratios Trigonometric Ratio A ratio of the lengths of two sides of a right triangle.](https://reader036.fdocuments.net/reader036/viewer/2022062305/56649f1e5503460f94c35ab6/html5/thumbnails/12.jpg)
Architecture Jenna stands 142 feet away from the base of a building. She looks at the top at an angle of 62° with the ground. How tall is the building?
SOHCAHTOA
![Page 13: Section 9.8 Trigonometric Ratios Trigonometric Ratio A ratio of the lengths of two sides of a right triangle.](https://reader036.fdocuments.net/reader036/viewer/2022062305/56649f1e5503460f94c35ab6/html5/thumbnails/13.jpg)
Homework
Practice 9.8