Question

Find the volume. Round to 1 decimal place

Answer 1

380.8cm³

Explanation:

Volume of a Cylinder is:
`V=\pi r^2h`

'r' is the radius.

'h' is the height.

We are given a height of 9.9 cm and a diameter of 7cm.

The radius is half the diameter.

Divide 7 by 2:

`7/2=3.5`

The radius is 3.5 cm.

Solve for The Volume (Using 3.14 for pi):

`V=3.14*3.5^2*9.9\\\rightarrow3.5^2=12.25\\V=3.14 * 12.25 * 9.9\\V=38.465 * 9.9\\\boxed {V=380.8035}`

380.8035 ≈ 380.8

The volume of the cylinder should be 380.8cm³.