A polygon is a plane bounded by three or more non-aligned line segments.

Components of a Polygon





Area and Perimeter

Types of Polygons

Convex Polygons

All of its angles are less than 180°.
All of the diagonals are internal.


Concave Polygons

At least one angle measures more than 180°.
At least one of the diagonals is outside the shape of the polygon.


Equilateral Polygons

Equilateral Polygon
All sides are equal.


Equiangular Polygons

Equiangular Polygon
All angles are equal.


Regular Polygons

Regular Polygon
They have equal angles and sides


Irregular Polygons

Irregular PolygonThey do not have equal angles and sides.

Types of Polygons by Sides