SOLUTION: what is the radius of a circle 45 inches long?

Algebra ->  Circles -> SOLUTION: what is the radius of a circle 45 inches long?      Log On


   

Question 379932: what is the radius of a circle 45 inches long?
Found 2 solutions by richard1234, robertb:
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
I hope that when you use the word "long" you're referring to a 45 inch diameter, in which, the radius would be 45/2 = 22.5 in.

Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
C+=+45+=+2pi%2Ar. Therefore r+=+45%2F%282pi%29+=+7.16 inches.