Question

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 soid so obtained

Answer 1

the solid forms by rotating the right angles triangle about the side 12 cm is right circular cone.
So, Vol. of cone =
$(1 \div 3)\pi{r}^{2}h$
=1/3*22/7*5*5*12
=88*25
=2200cm2