This week students learned that polygons are closed shapes with at at least three straight edges. We name polygons based on the number of sides it has:
Name of Polygon
|
Number of sides
|
Number of vertices
|
Triangle
|
3
|
3
|
Quadrilateral
|
4
|
4
|
Pentagon
|
5
|
5
|
Hexagon
|
6
|
6
|
Heptagon
|
7
|
7
|
Octagon
|
8
|
8
|
Nonagon
|
9
|
9
|
Decagon
|
10
|
10
|
