# How do I determine the volume of the solid obtained by revolving the curve #r=3sin(theta)# around the polar axis?

##### 1 Answer

Nov 12, 2014

Let us look at the polar curve

The above is actually equivalent to the circle with radius

by solving for

By Washer Method, the volume of the solid of revolution can be found by

by simplifying the integrand,

since the integral can be interpreted as the area of semicircle with radus

I hope that this was helpful.