A right triangle ABC with sides 5 cm, 12 cm and 13 cm is revolved about the side 12 cm.
Find the volume of the solid so obtained
When right-angled ΔABC is revolved about its side 12 cm then a cone is formed having
Height (h) = 12 cm
Radius (r) = 5 cm
Slant height (l) = 13 cm
Volume = 
r2h
= 
* 
* 5*5 * 12
= 100 
cm3
14