Question

Tamara needs to buy motor oil to fill 3 empty cylindrical barrels at her oral service center. Each barrel is 7 ft deep and has a radius of 4 ft. What is the volume of that oil needed? Use 3.14 for n.

Answer 1

1055.04 square feet

Explanation:

We know that Tamara needs to buy motor oil to fill 3 empty cylindrical barrels and each barrel is 7 feet deep and has a radius of 4 ft.

We are to find the total volume of oil needed.

To find that, we will find the volume of a cylinder and multiply it by 3:

Volume of cylindrical barrel =
`\pi r ^ 2 h = 3 ( 3.14 * 4 ^ 2 * 7 ) = 3 ( 351.68 ) =` 1055.04 square feet

Answer 2

The volume of oil will be 1055 cubic feet

Explanation:

As we know

Volume of cylinder is V= π r²h

Putting the values in it

V = 3.14 (4)² (7)

V = 3.14 (16) (7)

V = 351.6 cubic feet

But this is for one cylinder. We want for 3 so multiply with 3

Total volume of that oil needed = 1055 cubic feet