SOLUTION: My question is how much of something (like a rope) would I need to make a 5 foot diameter circle and then also a 6 foot diameter circle?

Algebra ->  Surface-area -> SOLUTION: My question is how much of something (like a rope) would I need to make a 5 foot diameter circle and then also a 6 foot diameter circle?      Log On


   

Question 443867: My question is how much of something (like a rope) would I need to make a 5 foot diameter circle and then also a 6 foot diameter circle?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The rope that makes a circle forms a
circumference, and the equation is
+C+=+2%2Api%2Ar+
where r is the radius.
You are given:
Diameter = 5 ft
+r+=+D%2F2+
+r+=+5%2F2+
+C+=+2%2Api%2A%285%2F2%29+
+C+=+5%2Api+
If the diameter is 6,
+C+=+6%2Api+