You should always remember that a cylinder consists of circles that are all over each other to form the height of the cylinder. So the volume of the cylinder= the area of the surface circle* the height. [tex]V=540=\pi r^2*h= \pi r^2*15 [/tex] Then, [tex] r^2= \frac{540}{15 \pi } [/tex] So, [tex]r= \sqrt{\frac{540}{15 \pi }} [/tex] radius is approximately 3.4cm *If you cannot see the equations properly please wait till it downloads or refresh the page* Hope this helps.
