Math CentralQuandaries & Queries


Question from luke:

what is the volume of a cylinder that is 30 mm in diameter and 70 cm high?

can you please write the equation out in full for me to help understand it better. thanks

Hi Luke,

The volume of a cylinder of radius $r$ units and height $h$ units is $\pi \; r^2 h$ cubic units, where $\pi$ is approximately 3.1416. You need to first decide if you want the volume in cubic millimeters or cubic centimeters. Once you have made that decision, convert the second measurement to the units you have chosen and then apply the formula to find the volume.


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