What is a polygon?

A polygon is a two-dimensional shape that is formed by connecting three or more straight line segments. The segments, called sides, do not cross each other and the shape is closed, meaning it has no openings. Some common examples of polygons include triangles, squares, pentagons, and hexagons.

A polygon is a 2D shape made up of straight lines, with at least three sides, that are joined end-to-end to enclose a region.