Question

2. Find the volume of the cylinder. Round to the

nearest tenth if necessary.

diameter = 4 mm

height = 8 mm

A. 131.1 mm3

B. 100.5 mm3

C. 116.9 mm3

*D. 230.0 mm3

Answer 1

Option B is correct.

Explanation:

Diagram of given scenario shown below.

Given that,

Diameter of cylinder is
`4\ mm`.

Height of cylinder is
`8 \ mm`.

So, Radius of cylinder is
`= (4)/(2)=2\ mm`

Volume of cylinder =
`\pi r^(2) h` {where,
`\pi =(22)/(7)=3.14` ,
`r` is the radius

of cylinder and
`h` is height of cylinder}

Substituting the values we get,

Volume of cylinder
`=\pi * (2)^(2)* 8`

`=3.14 * 32\\=100.48\ mm^(3)`

Therefore, Required volume of Cylinder rounding it to the nearest tenth ≈
`100.5\ mm^(3)`.

Hence, option B is correct.