| A | B |
|---|
| Area | The amount of surface a figure covers |
| base | Distance across the bottom of rectangle, square, or triangle |
| height | The distance along a side |
| parallelogram | Is a four-sided figure whose opposite sides are parallel |
| Pi | For any circle, the ratio of the circumference to the diameter |
| radius | A line from the center of a circle to any point on the circle |
| diameter | A line connecting two points on a circle and passing through the circle's center |
| circumference | The perimeter of a circle |
| Formula for the area of a triangle | bh/2 |
| Formula for the area of a rectangle or square | bh |
| Formula for the circumference of a circle | 3.14 x d |
| Formula for the area of a circle | 3.14 x r2 |
