Question

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What are m∠1 and m∠2?

A.m∠1 = 30°, m∠2 = 35°
B.m∠1 = 35°, m∠2 = 30°
C.m∠1 = 65°, m∠2 = 60°
D.m∠1 = 85°, m∠2 = 80°

Answer 1

B

Explanation:

First find the third angle straight linear make 180° so

180°-115°=65°

So 80°+65°+X=180°..triangle measure 180°

145°+X=180

X=180-145

X=35°

The second one. Again straight linear measure 180° so

180°-115°=65°

65°+85°+ Y=180°

150°+ Y=180°

X=180°-150°

Y=30°