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31 August, 09:12

An angel is 20 degrees less than the measure of its supplement. Find the measure of the angle

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  1. 31 August, 09:35
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    Let the supplement angle be x.

    Supplement angles add up to 180:

    x + x - 20 = 180

    2x - 20 = 180

    2x = 200

    x = 100

    Angle = 100 - 20 = 80

    Answer: The angle is 80°
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