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16 December, 06:53

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

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  1. 16 December, 07:12
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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)
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