Question 58059
C=2*3.14r [solve for r]
(1/2)C=(2*3.14r)/(1/2)
(1/2)C=3.14r
C/2=3.14r
(1/3.14)(C/2)=(3.14r)(1/3.14)
C/6.28=r
.
Check by plugging (r=C/6.28) back into the original equation]