What does polygon mean in Maths?

We will use the definition of the polygon to answer this question.

Answer: A polygon is a closed two-dimensional figure, that is made of three or more straight lines.

Polygon comes from Greek. Poly- means "many" and -gon means "angle".

Explanation: 

A polygon is a closed two-dimensional figure, that comprises three or more straight lines. Common examples of polygons are triangles, squares, pentagons, hexagons, etc. Sizes and shapes are the backbones of geometry. One of the most encountered shapes in geometry is polygons.

Therefore, a polygon is a closed two-dimensional figure, that is made of three or more straight lines.