| Perimeter |
| Polygon |
P = sum of the lengths of all sides |
| Rectangle |
P = 2(l + w) |
| Circumference |
| Circle |
C = 2 r, or C = d |
| Area |
| Rectangle |
A = lw |
| Square |
A = s2 |
| Parallelogram |
A = bh |
| Triangle |
A = (1/2)bh |
| Trapezoid |
A = (1/2)h(b1 + b2) |
| Circle |
A = r2 |
| Volume |
| Cube |
V = e3 |
| Prism |
V = Bh |
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