AP Calculus AB: 10.6.4 The Washer Method across the x-Axis
This set explains how to find the volume of solids of revolution with holes using the washer method. It highlights the importance of subtracting the inner radius area from the outer radius area for each cross-sectional slice, setting up integrals with proper radii, and solving volume problems involving regions not flush with the axis of rotation.
The Washer Method across the x-Axis
Key Terms
The Washer Method across the x-Axis
•Using the disk method, the volume V of a solid of revolution is given by , where R(x) is the radius of
the solid of revolution with respect to ...
note
Suppose you are asked to find the volume of the
solid of revolution described on the left.The first step would be to gra...
What is the volume of the solid of revolution generated by revolving the area bounded by y = 4, y = 2x, and x = 1 around the x‑axis?
20π/3 units^3
What is the volume of the solid of revolution generated by revolving the area bounded by y = 2, y = x + 3, and x = 4 around the x‑axis?
275π/3 units^3
What is the volume of the solid of revolution generated by revolving the area bounded by y = 4 and y = x^ 2 around the x‑axis?
256π/5 units^3
What is the volume of the solid of revolution generated by rotating the area bounded by y = 10, y = 8, x = −1, and x = 3 around the x‑axis?
144π units^3
Related Flashcard Decks
| Term | Definition |
|---|---|
The Washer Method across the x-Axis | •Using the disk method, the volume V of a solid of revolution is given by , where R(x) is the radius of |
note |
|
What is the volume of the solid of revolution generated by revolving the area bounded by y = 4, y = 2x, and x = 1 around the x‑axis? | 20π/3 units^3 |
What is the volume of the solid of revolution generated by revolving the area bounded by y = 2, y = x + 3, and x = 4 around the x‑axis? | 275π/3 units^3 |
What is the volume of the solid of revolution generated by revolving the area bounded by y = 4 and y = x^ 2 around the x‑axis? | 256π/5 units^3 |
What is the volume of the solid of revolution generated by rotating the area bounded by y = 10, y = 8, x = −1, and x = 3 around the x‑axis? |
|
What is the volume of the solid of revolution generated by revolving the area bounded by y = 2, y = x, and x = 0 around the x‑axis? | 16π/3 units^3 |
What is the volume of the solid of revolution generated by rotating the area bounded by y = 2, y = 3, x = 0, and x = 4 around the x‑axis? | 20π units^3 |