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18 May, 11:59

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

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Answers (1)
  1. 18 May, 12:22
    0
    A. 160

    Step-by-step explanation:

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