By PiThagoras

0

Posted: 2013-08-26

Radius of a Circle

Radius of a Circle

$$$D = {C \over pi} \; \; \; or \; \; \; R = {C \over 2 \pi}$$$

If you need to determine the Radius ($$R$$) or Diameter ($$D$$) of a circle and only have the Circumference ($$C$$), you can do that with this formula.