Question

A cone has a base radius of length r, and an perpendicular height length h. If the height remains the same, and the radius is multiplied by 3, then the volume is multiplied by: A. 2 B. 43 C. 9 D. 27

Answer 1

The formula for the volume of a cone is:

V= (1/3) x $\pi$ x $r^{2}$ x height

Since this is a quadratic equation, if the radius is multiplied by 3, then the volume is multiplied by its square, which is 9.

Hope this helps!