SOLUTION: What is the radius of a circle whose circumference is 16pie? Please help me as soon as possible.THANKS.

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Question 838810: What is the radius of a circle whose circumference is 16pie?
Please help me as soon as possible.THANKS.
Found 2 solutions by ewatrrr, jim_thompson5910:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,



C+=+2pi%2Ar

+C=+2pi%2Ar+=+16pi

        r = 8

Wish You the Best in your Studies.

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Note: pi is typed out as "pi" and NOT "pie"

C = 2*pi*r ... Start with the circumference formula

16*pi = 2*pi*r ... plug in the given circumference

16*pi/(2*pi) = r

8 = r

r = 8

So the radius is 8