Question

Given the formula for the circumference of a circle C = 2 pie r how would you rearrange the formula if you were interested in finding the radius of the circle
r= C/2 pie
r = C pie/2
r = C/pie
r + 2 pieC

Answer 1

To rearrange the formula for the circumference of a circle \( C = 2 \pi r \) in order to find the radius \( r \), you would divide both sides by \( 2\pi \).

Starting with the original formula \( C = 2 \pi r \):

1. Divide both sides by \( 2\pi \):

\[
r = \frac{C}{2\pi}
\]

So the correct rearranged formula to find the radius is:

\[
r = \frac{C}{2\pi}
\]

The other options you provided are not correct based on the rearrangement of the original equation.