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22 October, 10:52

For △ABC, m∠A = (x+2) °, m∠B = (x-4) °, and m∠C = (x+2) °. What is the measure of angle B?

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  1. 22 October, 14:36
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    The sum of the mmeasures of the interior angles of a triangle is 180 degrees.

    x + 2 + x - 4 + x + 2 = 180

    Simplify.

    3x = 180

    Divide both sides by 3.

    x = 60

    Angle A and C = 60 + 2 = 62 degrees.

    Angle B = 60 - 4 = 56 degrees
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