Question

I forgot how to do this and need help!:)

Answer 1

Formula for volume of cone;

V = π
`r^(2)` * h/3

Now, to find the radius of the diameter you find 1/2 of the diameter.

(diameter/2 = radius).

2.

Height = 28

Diameter = 24

To find radius;

24/2 = 12, is the radius.

Now plug this into our formula:-

V = π
`r^(2)` * h/3

V = 3.14(12^2) * 28/3

V = 3.14(144) * 9.333..

V = 452.16 * 9.333..

V = 4220.00928, which rounds to,

V = 4220

3.

Height = 12

Diameter = 11

To find the radius of the diameter you find 1/2 of the diameter.

(diameter/2 = radius).

11/2 = 5.5 is your radius.

Apply the same formula as mentioned earlier;

V = π
`r^(2)` * h/3

V = 3.14(5.5^2) * 12/3

V = 3.14(30.25) * 4

V = 94.985 * 4

V = 379.94