Homework Help: geometry

Posted by alisa on Monday, November 14, 2011 at 7:16pm.

If the sum of the measures of the interior angles of a convex n-gon is equal to the sum of the measures of the exterior angles, how many sides does the n-gon have?

geometry - Reiny, Monday, November 14, 2011 at 7:53pm
the sum for the exterior angles of any polygon is 360°

so solve
180(n-2) = 360
180n - 360 = 360
180n = 720
n = 4

looks like a quadrilateral

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