Question

What is the volume in cubic m to the nearest tenths place?

Answer 1

Answer: 25.12

Explanation:

The formula:
`V= \pi r^(2) h`

Volume = 3.14* (2^2) * 2

3.14 * 4* 2

3.14*8

= 25.12

Answer 2

Volume of cylinder is 25.1 cm³

Explanation:

The volume of a cylinder is the amount of space it occupies.

It is calculated by the formula:

`\boxed{\sf Volume = \pi r^2h}`

where:

• π is the mathematical constant pi, approximately equal to 3.142
• r is the radius of the cylinder
• h is the height of the cylinder

In this Case:

• diameter = 4cm

Since radius(r) is half of the diameter.

So,

• 
  `\sf radius(r) =(1)/(2)*4 = 2 cm`
• height(h) = 2 cm

Substituting value of r and h in above formula we get,

`\sf \textsf{Volume of cylinder }= \pi *2^2*2`

`\sf \textsf{Volume of cylinder }=8 \pi`

`\sf \textsf{Volume of cylinder }=8*3.142`

`\sf \textsf{Volume of cylinder }=25.136`

In nearest 10th

`\sf \textsf{Volume of cylinder }= 25.1 cm^3`

Therefore, Volume of cylinder is 25.1 cm³