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19 May, 15:59

The sum of the interior angles, s, in an n-sided polygon can be determined using the formula s = 180 (n - 2), where n is the number of sides. benita solves this equation for n and writes the equivalent equation n = 2. using this formula, how many sides does a polygon have if the sum of the interior angles is 1,260°?

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  1. 19 May, 18:58
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    If the sum of the polygon is 1,260, then

    180 (n - 2) = 1,260

    n - 2 = 1,260/180 = 7

    n = 7 + 2 = 9

    The polygon has 9 sides.
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