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If m∠ABC = 72°, what is m∠DAB? A) 72° B) 108° C) 144° D) 216°
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If m∠ABC = 72°, what is m∠DAB?
A) 72°
B) 108°
C) 144°
D) 216°

If m∠ABC = 72°, what is m∠DAB? A) 72° B) 108° C) 144° D) 216°-example-1
User Marine Galantin
by
7.8k points

2 Answers

4 votes
m<DAB + 72 = 180

m<DAB = 108

The answer is B) 108
User Marcus Whybrow
by
7.7k points
4 votes
m∠DAB + m∠ABC = 180°

m∠DAB + 72° = 180°

Subtract 72° on both sides.

m∠DAB = 180° - 72°

m∠DAB = 108°


Your final answer is B. 108°
User Savas Adar
by
7.7k points
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