1. My Polygon Book By: Mrs. Gage Square Rectangle Equalateral Triangle
Right Angle Triangle
Square
Equalateral
Triangle
My Polygon Book
Rectangle
By: Mrs. Gage
Isosceles
Triangle
Trapezoid
Parallelogram
Rhombus

2. Polygon Polygon Triangle Quadrangle
An enclosed shape with 3 or more straight sides.
Polygon
Triangle
Quadrangle

3. Triangle Any 3-sided polygon
Equilateral, isosceles, scalene, right-angle

4. Equilateral Triangle
All 3 sides are equal lengths.
Vertices
Sides

5. Isosceles Triangle Vertices Sides
2 sides are equal length and the 3rd side is different.
Vertices
Sides

6. Scalene Triangle
All 3 sides are different lengths.
Vertices
Sides

7. Right Angle Triangle One angle forms a right angle—90 degrees.
Vertices
Sides

8. Quadrangle Any 4-sided polygon
Square, rectangle, parallelogram, rhombus, trapezoid
There are 2 sets of parallels on each quadrangle except a trapezoid (only has 1 set)

9. Square
All 4 sides are equal lengths. There are 2 sets of parallels. They have 90 degree angles.
Vertices
Sides

10. Rectangle Vertices Sides
2 short and 2 long sides of equal lengths. There are 2 sets of parallels. They have 90 degree angles.
Vertices
Sides

11. Parallelogram Vertices Sides
2 short and 2 long sides of equal lengths. There are 2 sets of parallels. They do not have a 90 degree angle.
Vertices
Sides

12. Rhombus Vertices Sides
All 4 sides are equal lengths. There are 2 sets of parallels. They do not have a 90 degree angle.
Vertices
Sides

13. Trapezoid 4 sides of different lengths. There is 1 set of parallels.
Vertices
Sides