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By PiThagoras

Tags: Circle, Circumference, Radius, Diameter, Pi, Area


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.

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