geometry
posted by alisa on .
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?

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