 |
| ||
| |||
|
| Math Central | Quandaries & Queries |
|
Question from Mack: I need to find how close the actual volume was of a cylinder (with both ends closed) Height = 11cm
|
Hi Mack,
The volume $V$ of a circular cylinder is given by
\[V = \; \pi \; r^2 h\]
where $r$ is the radius of the base and $h$ is the height. You know that $h=11$ cm so all you need is the radius.
The circumference $C$ of a circle is given by
\[C = 2 \; \pi \; r\]
where again $r$ is the radius. You know that $C=24.4$ cm so substitute this into the above expression and solve for $r.$ Substitute this value of $r$ into the expression for $V.$ This will give the volume in cubic centimeters.
Penny
| ||
| ||
| ||
 |
 |
|
Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.