SOLUTION: Find the measure of an angle if its measure is 3 times that of its supplement

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Question 758973: Find the measure of an angle if its measure is 3 times that of its supplement
Answer by solver91311(24713) About Me  (Show Source):
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Angle and angle are supplementary] Therefore the sum of their measures is 180. So:



But we know that

Hence,



Calculate , then multiply by 3 to get

John

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