Question

Sketching a representative disks ,washers and shells : sketch a representative disks , washers , shells for the solid obtained by revolving the regions shown in figure around the given lines .

the line$y=3$

Short answer

Since there is a gap between the line $y=3$ and the curve the resulting solid from revolving around the $y=3$ is shell .

Step-by-step solution

Step 1. Given information 

We have been given

to find the revolved region about line$y=3$

Step 2. Finding the revolved region 

Since there is a gap between the line $y=3$ and the curve the resulting solid from revolving around the line$y=3$ is shell .