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?

Answer 1

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