Polygons
by Lori Nageotte

1. Hexagons
2. Pentagons
3. Quadrillaterals
3.1. Trapezium
3.2. Trapezoid
3.3. Parallelogram
3.3.1. Square
3.3.2. Rhombus
3.3.3. Rectangle
4. Triangles
4.1. Acute
4.1.1. Obtuse
4.1.1.1. Right
4.2. Scalene
4.2.1. Isosceles
4.2.1.1. Equilateral