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/2
r equals Start Fraction upper C pi over 2 End Fraction

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

r=2πC
r equals 2 pi upper C

r=C/π

Answer 1

To find the radius \( r \) from the circumference formula \( C = 2\pi r \), you can rearrange the equation as follows:

1. Divide both sides by \( 2\pi \): \[ r = \frac{C}{2\pi} \]

Thus, the correct rearranged formula for the radius is:

r = C/2π

So the response that corresponds to this correct rearrangement is:

r equals Start Fraction upper C over 2 pi End Fraction