1. Polygons
2-d shapes with only
straight sides

2. A regular polygon has all sides of equal length and all
angles of equal size.
The name of a polygon tells you the number of sides.
Polygon Pentagon Hexagon Heptagon Octagon
No. of sides 5 6 7 8
Example

3. The polygons below are irregular because their sides or
angles are not of equal size.
Polygon Pentagon Hexagon Heptagon Octagon
No. of sides 5 6 7 8
Example