Question

Please help ASAP my phone is about to die!!

Answer 1

D because I am in high school

Answer 2

h=9

Explanation:

Since diameter is 12 and radius is 1/2 of diameter.

R=6

Volume of a cone is

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

We need volume is 340 m^3.

`340 = 3.14(6 {}^(2) ) (h)/(3)`

`340 = 3.14(36) (h)/(3)`

`(340)/(3.14 * 36) = (h)/(3)`

`(1020)/(3.14 * 36) = h`

`h = 9`