Question

What is the volume of a cylindrical ring if we know the diameter of the revolving circle is 4ft and the length of the center line is 65ft

A- 816.82ft^3
B- 488.20ft^3
C- 567.94ft^3
D- 624.33ft^3

Answer 1

The answer is the option A

`816.82\ ft^(3)`

Explanation:

we know that

The volume of a cylinder is equal to

`V=\pi r^(2) h`

where

r is the radius of the cylinder

h is the height of the cylinder

In this problem we have

`r=4/2=2\ ft, h=65\ ft`

substitute the values

`V=\pi(2)^(2)(65)=816.81\ ft^(3)`