Question

Find the volume of the cone. Round your answer to the nearest tenth.

Please help!!

Answer 1

`V=36.8\pi` or
`V=115.4` (π ≈ 3.14) or
`V=115.5` (π = 3.141592···)

Explanation:

`r=(1)/(2) d`

`r=(1)/(2) (7)`

`r=(7)/(2)`

`V=(1)/(3) \pi r^2h`

`V=(1)/(3) \pi ((7)/(2) )^2(9)`

`V=(1)/(3) \pi ((49)/(4) )(9)`

`V=(1)/(3) \pi ((441)/(4) )`

`V= (147)/(4)\pi`

`V=36.75\pi`