Posted by connor on Tuesday, November 25, 2008 at 8:24pm.
Rearrange the equation to isolate the r. (what is the equation to find the radius?)
C=2piR
Circumfrence= 2(pie)(radius)

Math/Science  Anonymous, Tuesday, November 25, 2008 at 8:54pm
1 1
   =
4 2
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