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11-01-2018
Mathematics

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Find the sum of the angle measures of a quadrilateralquadrilateral.

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jdoe0001 jdoe0001

11-01-2018

I take it you meant the "interior" angles, as opposed to the "exterior" ones.

the sum of the interior angles of a polygon is

180(n - 2) n = number of sides in the polygon.

a QUADrilateral has 4 sides, so the sum of the interior angles is 180( 4 - 2).

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