Thread:Redfork2000/@comment-31727837-20181204232242/@comment-26888167-20181228001657

Time for geometry! Ahem...

A polygon is a two-dimensional figure with at least three straight sides and angles, and typically five or more. Examples of polygons are triangles, pentagons, squares, hexagons, etc.

A polygon can only have straight sides. Therefore, a circle is not a polygon. Basically, polygons are a specific type of shapes that have only straight sides and angles.