Find the volume of the solid generated by revolving the shaded region about the given axis.
About the y-axis
Choices:
21π
49π
(21/2)π
42π
![Find the volume of the solid generated by revolving the shaded region about the given axis About the yaxis Choices 21π 49π 212π 42π class=](https://us-static.z-dn.net/files/d3a/3b6321cea4618a5aba964d8e4756fcf1.png)