Polygons

Is it a polygon? Is it a closed figures with straight edges?

Naming Polygons

Polygons are named based on the number of sides in the figure.

3 sides: triangle

4 sides: quadrilateral

5 sides: pentagon

6 sides: hexagon

7 sides: heptagon

8 sides: octagon

Special Quadrilaterals

Some quadrilaterals have special characteristics.