Formulas for 2 Dimensional Objects
|
2-D Object |
Perimeter |
Area |
|
|
|
Circle |
2(pi)r |
(pi)r2 |
|
|
Square |
4s |
s2 |
|
|
Rectangle |
2l + 2w |
lw |
|
|
Triangle |
a + b + c |
(1/2)bh |
Formulas for 3 Dimensional Objects
|
3-D Object |
Surface Area |
Volume |
|
|
|
Cube |
6a2 |
a3 |
|
|
Rectangular Prism |
2lw + 2wh + 2lh |
lwh |
|
|
Cylinder |
2(pi)r2 + 2(pi)rh |
(pi)r2h |
|
|
Cone |
(pi)rs + (pi)r2 |
(1/3)(pi)r2h |
|
|
Sphere |
4(pi)r2 |
(4/3)(pi)r3 |
