Question

The height of a cylinder is twice the radius of its base.

What expression represents the volume of the cylinder, in
cubic units?
43x2
2x3
Pix2 + 2x
2+ pix3

Answer 1

`2`πr³

Explanation:

`The ~volume~ (V)~ of~ a ~cylinder~ is~ calculated ~as:`

`V =` πr²
`h` ←
`r ~is ~the ~radius~ and ~h ~the~ height.`

`Here~ h = 2r, hence`

`V =` πr² ×
`2r~=2`πr³