Question

Help me please !!!!!!!!!!!!!!

Answer 1

`\large\boxed{V=(49\pi)/(3)\ in^3}\approx51.29\ in^3}`

Explanation:

The formula of a volume of a cone:

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

r - radius

H - height

We have

r = (7 : 2) in = 3.5 in

H = 4 in

Substitute:

`V=(1)/(3)\pi(3.5)^2(4)=(1)/(3)\pi(12.25)(4)=(49\pi)/(3)\ in^3`

`\pi\approx3.14\\\\V\approx((49)(3.14))/(3)\approx51.29\ in^3`