User:Pathfinder75

A polygon can be defined (as illustrated above) as a geometric object "consisting of a number of points (called vertices) and an equal number of line segments (called sides), namely a cyclically ordered set of points in a plane, with no three successive points collinear, together with the line segments joining consecutive pairs of the points. In other words, a polygon is closed broken line lying in a plane" (Coxeter and Greitzer 1967,)

Types of Polygon

The polygons are categorized in to different types based on the number of sides and the measure of the angles. The different types of polygons are listed below:
 * Regular Polygons
 * Irregular Polygons
 * Concave Polygons
 * Convex Polygons
 * Quadrilateral Polygons
 * Pentagon Polygons

Regular polygon:

In a regular polygon, all the sides of the polygon are equal and all the interior angles are the same.

=== Irregular polygon: === Irregular polygons is one of the types of polygons which are not regular. The sides and the angles of the polygon are not equal as in the regular polygon.

Convex polygon:

In a convex polygon, the measure of the interior angle is less than 180 degrees. This type of polygon is the exact opposite of the concave polygon. The vertices of a convex polygon always outwards.

Concave polygon:

In a concave polygon, atleast one angle measures more than 180 degrees. The vertices of a concave polygon inwards as well as outwards.

Quadrilateral polygon:

Quadrilateral polygon is also known as four sided polygon or a quadrangle. The different types of the quadrilateral polygon are square, rectangle and parallelogram.

Pentagon polygon:

The six sided polygon is also called as pentagon polygons. The 5 sides of the polygon are equal in length. The regular pentagon is one of the types of the pentagon polygon.