Question

Please explain and answer ​

Answer 1

Explanation:

`v \: = \: \pi \: {r}^(2) * (h)/(3)`

rearrange to get

`48\pi \: = \: \pi {r}^(2) * (9)/(3)`

remove pi from both sides

`48 \: = {r}^(2) \: * 3`

`(48)/(3) = {r}^(2)`

`16 = {r}^(2)`

`r = √(16)`

`r = 4`