By Anonymous
0
Posted: 2013-11-11
Radius of a Circle from its Area
Radius of a Circle from its Area
$$$r = \sqrt{A \over \pi}$$$
If you need to find the Radius ($$r$$) of a circle, and only have the Area ($$A$$) to work with, you can use this handy formula.
If you have the Circumference, use this formula: www.automathic.org/152_radius-of-a-circle
