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11 July, 04:11

Find the sum of interior angles a polygon has with the given number of sides a. 9 b. 19

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  1. 11 July, 07:23
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    The equation for this is (n-2) x 180

    Replace n with the number of sides:

    a. 9: (9-2) x 180 = 7 x 180 = 1,260

    b. 19: (19-2) x 180 = 17 x 180 = 3,060
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