# Math Help - Finding the Area of Circle

1. ## Finding the Area of Circle

A Piece of String fits exactly around the curved surface of a cylinder whose radius is 3 cm. Find the length of the string.

2. Originally Posted by Illuminati
A Piece of String fits exactly around the curved surface of a cylinder whose radius is 3 cm. Find the length of the string.
$6\pi$...this should be obvious from $\text{Circumference of circle}=2\pi{r}$