Types of Polygons
Polygon - Closed figure madeup of several linbe   segments that are joined together. The sides do not cross each other. Exactly two sides meet at every vertex

Regular Polygon - when all angles and all sides of the polygon are of equal length

Equilateral Polygon
- A polygon when are the sides are the same length.

Equiangular Polygon
- is a polygon with all congruent angles.

Convex polygon
- a polygon in which no segment connecting two vertices is outside the polygon.
 
Concave polygon- a polygon in which at least one segment connecting two vertices is outside the polygon.