Definition: A polygon is a simple closed curve consisting entirely of a finite number of line segments. The line segments are called the sides of the polygon.
| We give special names to common polygons. | |
| triangle | A polygon with three sides |
| quadralateral | A polygon with four sides |
| pentagon | A polygon with five sides |
| hexagon | A polygon with six sides |
| heptagon | A polygon with seven sides |
| octagon | A polygon with eight sides |
| n-gon | A polygon with n sides |