Question

Given the formula for the circumference of a circle, C=2πr, how would you rearrange the formula if you were interested in finding the radius of the circle? (1 point)%0D%0AResponses%0D%0A%0D%0Ar=2πC%0D%0Ar equals 2 pi upper C%0D%0A%0D%0Ar=C2π%0D%0Ar equals Start Fraction upper C over 2 pi End Fraction%0D%0A%0D%0Ar=Cπ2%0D%0Ar equals Start Fraction upper C pi over 2 End Fraction%0D%0A%0D%0Ar=Cπ%0D%0Ar equals Start Fraction upper C over pi End Fraction

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 isolate \(r\) by dividing both sides of the equation by \(2\pi\):

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

So the correct response is:

**r = Start Fraction upper C over 2 pi End Fraction.**