Circumfrence is 24 times pi, what is the radius and diameter?

1 Answer
Mar 29, 2018

#r=12, d=24#

Explanation:

Recall that

#C=2pir# where #r# is the radius. We're given #C=24pi,# so

#24pi=2pir#

Solve for #r# by dividing both sides by #2pi:#

#r=(24cancelpi)/(2cancelpi)=24/2=12#

The diameter is simply twice the radius. #d=2r=2(12)=24#