$\"\"$

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The curve equations are $\"\"$ , $\"\"$ , $\"\"$ about the line $\"\"$ .

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Region is revolving about the line $\"\"$ means that vertical axis revolution.

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Shell method:

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The plane region is revolving about the $\"\"$ axis.

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The volume of the solid is $\"\"$ .

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The distance from the center of the rectangle to the axis of revolution is $\"\"$ .

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$\"\"$ and $\"\"$ .

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The height of the rectangle is $\"\"$ .

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Find the intersection points.

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$\"\"$ and $\"\"$ .

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$\"\"$

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Thus, intersection points are $\"\"$ and $\"\"$ .

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The integrating limits are $\"\"$ to $\"\"$ .

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Substitute $\"\"$ and $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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$\"\"$ cubic units.

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$\"\"$

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$\"\"$ cubic units.