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Find the volume of the solid generated by revolving the region

about the y-axis. The region enclosed by the triangle with vertices
(0, 0), (1, 0), (1, 2)

1 Answer

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Final answer:

To find the volume of the solid generated by revolving the region about the y-axis, we can use the formula for the volume of a solid of revolution. The volume of the solid generated by revolving the triangle about the y-axis is 2π.

Step-by-step explanation:

To find the volume of the solid generated by revolving the region about the y-axis, we need to use the formula for the volume of a solid of revolution. The region enclosed by the triangle with vertices (0, 0), (1, 0), and (1, 2) is a right triangle with base 1 and height 2.

The volume of a solid generated by revolving the triangle about the y-axis can be found by integrating the cross-sectional area from y=0 to y=2.

The cross-sectional area of a solid of revolution is given by the formula A(y) = πr^2, where r is the distance from the y-axis to the curve at height y. In this case, the distance from the y-axis to the right side of the triangle is 1, so the cross-sectional area is A(y) = π(1^2) = π.

Integrating the cross-sectional area from y=0 to y=2, we get the volume of the solid as V = ∫[0,2] A(y) dy = ∫[0,2] π dy = π[2-0] = 2π.

User DarkThrone
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