Question

If a diameter of a cylinder is 5 yd and the height is 8 yd what is the volume?

Answer 1

`\large\boxed{V=50\pi\ yd^3\approx157\ yd^3}`

Explanation:

The formula of a volume of a cylinder:

`V=\pi r^2H`

r - radius

H - height

We have the diameter d = 2r = 5yd → r = 2.5yd and the height H = 8yd.

Substitute:

`V=\pi(2.5)^2(8)=\pi(6.25)(8)=50\pi\ yd^3\\\\\pi\approx3.14\to V\approx(50)(3.14)=157\ yd^3`