## What is a polygon?

Do you remember what **polygons** are? They are **plane shapes**, or **2-dimensional** (length and width) shapes, **bounded by a closed broken line**. The line segments of the broken line are the **sides of the polygon**, the points where they meet are the **apexes of the polygon**.

The sum of the length of all the sides is the **perimeter of the polygon**, the surface inside is the **area of the polygon**.

There different ways to classify polygons. Let's see!