Determining Angle Measures In the diagram, m23 = 120° and m212 = 80°. Which
angle measures are correct? Check all that apply.
m21 = 60°
2
9 10
11 12
m213 = 80
e
3
4
m26 = 80°
56
7 8
13 14
15 16
m25 = 60°
m210 = 120°
d
m2 14 = 100°
Done
Intro

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