Formula
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Created by:
BriannaEllise on March 22, 2012
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12 terms
Terms | Definitions |
|---|---|
 perimeter of rectangle | 2l+2w |
| circumference of circle | 2πr or dπ |
| herons formula | s :square root: s(s-a)(s-b)(s-c) |
| length of an arc | (mARC/360)2πr |
| area of a sector | (mARC/360)πr^2 |
| ratio of sides | a:b |
| ratio of perimeters | a:b |
| ratio of areas | a^2:b^2 |
| ratio of surface areas | a^2:b^2 |
| ratio of volumes | a^3:b^3 |
| eulers theorem | faces+ vertices=edges+2 |
| geometric mean | (a/x)(x/b) i.e. (2/x)(x/8)>x^2=16>x=4 |
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