# Definition:Pentagon

## Definition

A **pentagon** is a polygon with exactly $5$ sides:

### Regular Pentagon

A **regular pentagon** is a pentagon which is both equilateral and equiangular.

That is, a regular polygon with $5$ sides.

That is, a pentagon in which all the sides are the same length, and all the vertices have the same angle:

## Also see

- Results about
**pentagons**can be found here.

## Linguistic Note

The word **pentagon** derives from the Greek **penta**, meaning **five**, and **gon**, deriving from the Greek for **corner**.