| A | B |
|---|
| quadrilateral | 4 sided polygon |
| pentagon | 5 sided polygon |
| hexagon | 6 sided polygon |
| octagon | 8 sided polygon |
| area of a square | side x side |
| area of a rectangle | length x width |
| area of a triangle | 1/2 x base x height |
| area of a circle | pi x radius x radius |
| perimeter of a square | side+side+side+side ( 4 x side) |
| perimeter of a rectangle | length+length+width+width |
| circumference of a circle | 2 x radius x pi or diameter x pi |
| parallel lines | lines that will never intersect |
| perpendicular lines | lines that meet at a 90 degree angle |
| right triangle | triangle w/ a 90 degree angle |
| acute triangle | triangle w/ all angles are less than 90 degrees |
| obtuse triangle | triangle w/ an angle greater than 90 degrees |
| Pythagorean Theorem | used only with right triangles |
| Find the area of a 9 by 8 foot room | 72 square feet |
| the perimeter of a 9 by 8 foot room | 34 feet |
| the volume of a cube | side x side x side |
