Question

I need help on this question

Answer 1

Your answer is the last option, 615.44 ft³.

We know this as the formula for the volume of a cone is [(π × r²) × ]/3, and substituting in our numbers, with 3.14 being π, we get:

[(3.14 × 7²) × 12]/3 = (153.86 × 12)/3 = 1846.32/3 = 615.44

I hope this helps!

Answer 2

Hey!

The formula for finding volume of a cone is: (π · r² · h) ÷ 3

`\pi = 3.14`

`r = 7 \\ r^(2) = 7 * 7 = 49`

`h = 12`

First multiply

`3.14 * 49 * 12 = 1846.32`

Divide by 3

`1846.32 / 3 = 615.44\ ft^(3)`

Your answer is the last choice

Good luck and hope this helps! :)