MATHEMATICAL FORMULAS:
Sometimes it's just a matter of some simple math to figure out the area or volume of a piece that will help you. If that's the case we offer the following basic formulas to determine the area or volume of some of the more common shapes.
Areas:
|
Shape: |
Formula: |
|
Triangle |
base times height divided by two |
|
Rectangle |
a times b, where a and b denotes the length of the sides (for a square a and b are equal) |
|
Circle |
pi times radius squared(pi=3.14159) |
|
Cube |
6 times a squared (a=length of side) |
|
Sphere |
4 pi times the radius squared(pi=3.14159) |
|
Cylinder |
height times circumference (does not include ends, use circle formula for ends) |
Volumes:
|
Shape: |
Formula: |
|
Cube |
a times b times c (a,b and c equal the length, depth and height) |
|
Sphere |
4/3 pi times radius cubed(pi=3.14159) |
|
Tetrahedron |
.11785 times length of edge (for equilateral tetrahedron) |
|
Pyramid |
area of base times height divided by |
|
Cone |
area of base times height divided by three |
|
Cylinder |
area of base times height |
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