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=2πC
r equals 2 pi upper C

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

r=C2π
r equals Start Fraction upper C over 2 pi End Fraction

r=Cπ

Answer 1

To rearrange the formula for the circumference of a circle \( C = 2\pi r \) to solve for the radius \( r \), you can follow these steps:

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

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

Thus, the correct response would be:

r = C / (2π)
(r equals Start Fraction upper C over 2 pi End Fraction)