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

Answer:

The answer is the option A

$816.81\ ft^{3}$

Step-by-step 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

$V=\pi(2)^{2}(65)=816.81\ ft^{3}$