At the end of this activity, students should be able to: - understand what irregular and regular polygons are. - calculate the number of diagonals in a polygon. - calculate the sum of the angles in a polygon. - calculate the sum of the exterior angles of a convex polygon. - calculate the central angle in a regular polygon. - calculate the interior and the exterior angles of a regular polygon. - draw regular n-gons.

Originally released by Learnetic, 2016.