Posted by alisa on Monday, November 14, 2011 at 7:16pm.
If the sum of the measures of the interior angles of a convex ngon is equal to the sum of the measures of the exterior angles, how many sides does the ngon have?

geometry  Reiny, Monday, November 14, 2011 at 7:53pm
the sum for the exterior angles of any polygon is 360°
so solve
180(n2) = 360
180n  360 = 360
180n = 720
n = 4
looks like a quadrilateral