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How do you solve for r in #C=2(pi)r#?

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Mar 8, 2016

Answer:

#r=C/(2pi)#

Explanation:

This is the formula for Circumference #C# of a circle given the radius #r#, where #pi=22/7# or #3.14# or #3.14159# or #3.1416#.

Hence #Cxx1/(2pi)=2pir/(2pi)# or #C/(2pi)=r# i.e. #r=C/(2pi)#

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