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27 March, 16:28

If the exterior angle of a triangle is 120 degree and its interior opposite angles are (15x+5) and (22x+4), Find the value of x

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  1. 27 March, 16:31
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    The exterior angle is equal to the sum of opposite interior angles, so ...

    (15x+5) + (22x+4) = 120

    37x + 9 = 120

    x = (120 - 9) / 37 = 3

    The value of x is 3.
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