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

r=Cπ2
r equals Start Fraction upper C pi over 2 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 of the equation by \( 2\pi \):

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

So the correct response is:

r equals Start Fraction upper C over 2π End Fraction.