Polygon

Any shape made of straight edges/sides – many sides

Poly = many

Polly the parrots were many and everywhere.

Gon = sides

Gone are the sideburns he’d had for years.

Example 1

All the above are examples of polygons.

Example 2

Polygons can be convex or concave.

Example 3

Polygons where all the sides are equal length are known as equilateral polygons.

Example 4

Polygons where all the internal angles are equal are known as equiangular polygons.