| A | B |
| perimeter | distance around a polygon |
| area | space inside a polygon |
| volume | capacity of a 3-D object |
| circumference | distance around a circle |
| center | point the same distance from all points on the circle |
| radius | distance from center to edge of circle |
| diameter | distance across a circle through the center |
| chord | distance across a circle |
| pi | ratio of circumference to the diameter |
| polyhedron | 3-D figure that is composed of polygons |
| face | polygon surface of a polyhedron |
| edge | two faces meet to form this |
| vertex | intersection of 3 or more faces |
| surface area | sum of the area of the faces |
| to find perimeter | add all sides |
| area of a square | side x side |
| area of a parallelogram | base X height |
| area of a triangle | 1/2 x base x height |
| area of a trapezoid | 1/2 x h x (small base + long base) |
| area of a rectangle | length x width |
| label perimeter | units |
| label area | square units |
| label volume | cubic units |
| volume of a box | length x width x height |
| volume of a prism | base area x height |
| area of a circle | pi x radius x radius |
| circumference of a circle | pi x diameter |