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What is the measure of angle A if angle A and angle B are supplementary and the measure of angle B is 20?

A. 160
B. 90
C. 70
D. 180​

User Nateph
by
6.8k points

1 Answer

3 votes

Answer:

A. 160

Explanation:

Supplementary angles add to be 180. Subtract 20 from 180 and you get 160.

User Andrew Oakley
by
7.1k points
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