A polygon consists of three or more line segments whose endpoints connect end-to-end to enclose an area. Examples of polygons are triangles, squares, and rectangles.

Polygons come in different shapes and sizes. Whenever all sides of a polygon are the same length, it is said to be a regular polygon. Otherwise, a polygon is considered to be irregular.

There is no maximum limit to the number of line segments used to form polygon. Polygons with more than four sides are commonly named using the Greek prefix for the number of sides, followed by -gon. Think about the name in the applet before pressing ⬆️ and ⬇️ to increase or decrease the number of sides.