Question

Find the volume of the cylinder. Use 3.14, round your answer to the nearest tenth. Diameter is 15m and the height is 3.9

Answer 1

The radius r = 15 / 2 = 7.5 m

Volume = pi r^2 h

= 3.14 * 7.5^2 * 3.9

= 688.84 m^2 to nearest hundredth.

Answer 2

Answer:
`688.9\text{ m}^3`

Explanation:

Given: The diameter of cylinder = 15 m

Then, Radius =
`r=(15)/(2)=7.5\text{ m}`

Height =3.9 m

The formula to find the volume of a cylinder is given by :-

`V=\pi r^2 h`

i.e.
`V=(3.14)(7.5)^2 (3.9)`

`\Rightarrow\ V=688.8375\approx688.9\text{ m}^3`

Hence, the volume of the cylinder =
`688.9\text{ m}^3`