Post on 10-Jan-2016
description
Lesson 3-3Lesson 3-3The Angle Addition PostulateThe Angle Addition Postulate
Ohio Content Standards:
Ohio Content Standards:
Estimate and compute various attributes, including length, angle measure, area, surface area and volume, to a specified
level of precision.
Ohio Content Standards:
Formally define geometric figures.
Ohio Content Standards:
Formally define and explain key aspects of geometric figures.
Postulate 3-3Angle Addition Postulate
(A-A Postulate)
Postulate 3-3Angle Addition Postulate
(A-A Postulate)
For any angle PQR, if A is in the interior of PQR, then
m PQA + m AQR = m PQR.
If m KNL = 110 and m LNM = 25, find m
KNM.
KM
L
N
25°
110°
Find m 2 if m 1 = 75 and m ABC = 140.
AC
D
B
21
Find m JKL and m LKM if m JKM = 140.
JM
L
K
4x°
(2x – 10)°
Angle Bisector
Angle Bisector
Separates the angle into Separates the angle into two angles of equal two angles of equal
measure.measure.
If FD bisects CFE and m CFE = 70, find
m 1 and m 2.C
E
D
F
21
HomeworkHomework
Pgs. 108-109 12-22 evens,
27-29 all