What is the measure of the unknown angle? (2 points)42°1280O13201389140°

Rakesh Burbure asked Jan 20, 2023

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Rakesh Burbure asked Jan 20, 2023

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10 votes

They are supplementary angles, so their addition equals 180°

n + 42 = 180°

Solve for n

n = 180 - 42

n = 138°

Result n = 138°

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