Carl knows the required height of the volume of a cone-shaped vase he's designing. Which formula can he use to determine the radius of the vase. Select the correct answer.

A. r = V / 3πh

B. r = V / πh

C. r = 3V / πh

D. r = ± / V πh

The volume of a cone is calculated like this:

V = pi*r^2*h/3

so we have to solve for radius:

r = √ (3V/pi*h)

that is how to get the radius.

From your answers, C answer approaches to it, but it lacks the square root which is fundamental as well