pi question?

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solve for r: c=2(pi)r

2007-12-10 01:40:22 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

In your problem r is multiplied by 2pi. Solve by doing the opposite of multiplying. So divide both sides by 2pi to get r = c/2pi

2007-12-10 01:44:31 · answer #1 · answered by baja_tom 4 · 0⤊ 0⤋

How can you solve for the circumference of a circle if pi is an irrational number? Pi has more than a million digits. I would leave as it is.

2007-12-10 09:51:28 · answer #2 · answered by Kyle J 6 · 0⤊ 2⤋

c=2(pi)r
c=2(3.14)r
c=6.28*r
c/6.28=r

if u have the value of c u can findout r

2007-12-10 09:45:44 · answer #3 · answered by Siva 5 · 0⤊ 0⤋

take c and divide by (2 times 3.14)

c divided by 6.28

GL

2007-12-10 09:43:31 · answer #4 · answered by Man of Ideas 5 · 0⤊ 0⤋