Question

Write an expression for the volume of a cylinder 7 in greater than the radius

Answer 1

here you go ..............

Answer 2

`\pi r^2(r+7)`

Explanation:

We are to write an expression for the volume of a cylinder 7 inches greater than the radius.

We know that the formula for the volume of a cylinder:

Volume of a cylinder =
`\pi r ^ 2 h`

where
`r` radius of the base of the cylinder,

`h` is the height of the cylinder.

Here, the height of the cylinder is 7 more than its radius:
`h = r+7`

So substituting this in the above formula to get:

Volume of cylinder =
`\pi r^2(r+7)`