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28 October, 11:47

Each exterior angle of a regular polygon is 120° less than each of its interior angle. How many sides does the polygon have?

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  1. 28 October, 11:58
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    12 sides

    Step-by-step explanation:

    let interior angle = x

    x + (x-120) = 180

    x+x-120=180

    2x-120=180

    2x=180+120

    x=300/2

    x=150

    exterior angle=150-120

    =30

    no. of side = s

    no. of side = 30*s=360

    =s=360/3

    =12
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