Question

Steve has a steel barrel with a diameter of 4 feet that can be filled to a depth of 4.3 feet with oil. What is the volume of the barrel?

Use = 3.14

A.
54.008 cubic feet

B.
51.6 cubic feet

C.
78.128 cubic feet

D.
17.708 cubic feet

Answer 1

Option A. 54.008 cubic feet

Explanation:

we know that

The volume of the barrel is equal to

`V=\pi r^(2)h` ----> volume of the cylinder

we have

`r=4/2=2\ ft` ----> the radius is half the diameter

`h=4.3\ ft` ---> is the depth

`\pi =3.14`

substitute

`V=(3.14)(2)^(2)(4.3)`

`V=54.008\ ft^(3)`