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21 January, 17:01

The sum of the interior angles of a triangle is 180 the second angle of a triangle is 45 more than the first and the third angle is twice the first

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  1. 21 January, 20:33
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    First angle is x

    x + (x + 45) + 2x = 180

    4x + 45 = 180

    4x = 180 - 45 = 135

    x = 135 divided by 4

    x = 33.75

    first angle 33.75

    second angle 78.75

    third angle 67.5

    checking

    33.75 + 78.75 + 67.5 = 180
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