SEARCH HOME
Math CentralQuandaries & Queries

search

Question from Ronald:

I have a cylinder that is 32 inches round by 25 inches deep how much water can it hold

Hi Ronald,

The volume $V$ of a cylinder is given by $V = \pi \; r^2 h$ cubic units where $r$ is the radius of its circular base and $h$ is its height and $\pi$ is approximately 3.1416. Your units are inches so the volume will be in cubic inches. You also know that $h = 25$ inches so all you need is $r.$

The circumference of a circle is given by $C = \pi \; d$ where $d$ is its diameter. You know $C= 32$ inches so its diameter is $\large \frac{C}{\pi}$ inches. The radius is half the diameter and hence $r = \large \frac{d}{2}.$ Now you can find the volume $V$ in cubic feet.

If you want different units say gallons the ask Google. Just type What is V cubic feet in gallons? into the Google search window.

Cheers,
Penny

About Math Central
 

 


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.
Quandaries & Queries page Home page University of Regina PIMS