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21 August, 05:06

A triangle has one angle measuring 3X degrees the second angle measures 2X + 20° and the third angle measures 4X - 20° what is the value of X

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  1. 21 August, 06:05
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    The sum of all 3 interior angles in a triangle is 180°.

    so 3x + (2x+20) + (4x-20) = 180

    9x+20-20=180

    9x=180

    x=180/9

    x=20
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