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.