I realize that many students cannot recall the number of size of the various Memorize Polygons. If you do not know the number of sides , you will not be able to solve. Elementary Math Problems involving Polygons as you will not know what *n* value. (i.e. no. of sides) to insert into the formulas. However, This Short Math Video show you how to memorize the number of sides of a Pentagon, Hexagon, Heptagon, Octagon, Nonagon and Decagon.

Elementary Math – Polygons – Find the Number of Side of a Polygon