# Thread: Volume of Solid of Revolution by Integration

1. ## Volume of Solid of Revolution by Integration

i need help with the very last question with the graph, part c where it says find volume, i am very new to calculus and never came across this did my research and found volume of solid by revolution , found something called washer as well. so confused sigh

2. ## Re: Volume of Solid of Revolution by Integration

To find the volume of a region bounded above by y = f(x) and below by the x axis, rotated about the x axis, use \displaystyle \begin{align*} V= \pi \int_a^b{ \left[ f(x) \right] ^2 \, \mathrm{d}x } \end{align*}

3. ## Re: Volume of Solid of Revolution by Integration

that makes no sense to me. but okay thanks anyway