Question 650764
a cylinder with radius 2 inches and height 4 inches has its radius tripled.
 How many times greater is the volume of the larger cylinder than the smaller cylinder.
:
Since the radius is squared when you find the volume of a cylinder,
tripling the radius, increases the volume by 3^2 or 9 times
:
You can confirm this on your calc
enter:
 {{{pi*2^2*4}}}
and
 {{{pi*6^2*4}}}