# The Sum of the Interior Angles of a Pentagon

- Author:
- Vy Vu

## What is a pentagon?

A pentagon is a

**5-sided polygon**. If its sides are**equal**to each other, it is a**regular**pentagon. Otherwise, it is called an**irregular**pentagon. Every pentagon can be divided into three triangles without any of them collapsing on one another. That is why, the**sum of the interior angles**of a**pentagon**is