Polygons are 2D shapes that are made up of straight lines only.

A cube is not a polygon, because it’s 3D.

A circle is not a polygon because it has curved sides.

**List of Polygons**

- 3 sides –
**triangle** - 4 sides –
**quadrilateral** - 5 sides –
**pentagon** - 6 sides – hexagon
- 7 sides – heptagon
- 8 sides – octagon
- 10 sides – decagon
- 12 sides – dodecagon