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Find the measure of an angle whose measure is 18 degrees less then its supplement
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Find the measure of an angle whose measure is 18 degrees less then its supplement

User Jasoares
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1 Answer

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Two Angles are Supplementary when they add up to 180 degrees. So your angle a has a supplement 180-a, and 180-a-18 = a, which is an equation we can solve.

180-a-18 = a
162 = 2a
a = 81 (supplement is 99)


User Dejakob
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