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)

Question

Responses

r=Cπ2
r equals Start Fraction upper C pi over 2 End Fraction

r=Cπ
r equals Start Fraction upper C over pi End Fraction

r=2πC
r equals 2 pi upper C

r=C2π

Answer 1

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

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

None of the provided options are correct, but the closest option closely resembling the correct rearrangment should be:

r = C/2π

This means that \( r = \frac{C}{2\pi} \).