Question

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

Answer 1

Volume of Cylinder

Cross Sectional Area × Height
{22/7×2²} × 65
= 817.14 ft squared

Answered = 817.14 ft squared

Answer 2

The answer is the option A

`816.81\ 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)`