Question

Sketching disks ,washers and shells : sketch the three disks , washers , shells that result from revolving the rectangles shown in the figure around the given lines

the x-axis .

Short answer

The resulting solid from revolving around the x-axis will be disks .

Step-by-step solution

Step 1. Given information 

We have been given

To find out the figure formed after revolving about x- axis .

Step 2. Finding the revolved figure 

Since from the figure we can see that there is no gap between x- axis and rectangle the resulting solid formed after revolving around x-axis is disk.