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Volumes of Solids of Revolution: Shell Method. Adapted by Mrs. King from http://tutorial.math.lamar.edu/AllBrowsers/2413/VolumeWithCylinder.asp. Find the volume generated when this shape is revolved about the y axis. We can’t solve for x, so we can’t use a horizontal slice directly.
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Volumes of Solids of Revolution: Shell Method Adapted by Mrs. King from http://tutorial.math.lamar.edu/AllBrowsers/2413/VolumeWithCylinder.asp
Find the volume generated when this shape is revolved about the y axis. We can’t solve for x, so we can’t use a horizontal slice directly. www.letu.edu/people/.../Lesson7.3Volume-TheShellMethod.ppt
If we take a vertical slice and revolve it about the y-axis we get a cylinder. www.letu.edu/people/.../Lesson7.3Volume-TheShellMethod.ppt
Shell Method • Based on finding volume of cylindrical shells • Add these volumes to get the total volume • Dimensions of the shell • Radius of the shell • Thickness of the shell • Height www.letu.edu/people/.../Lesson7.3Volume-TheShellMethod.ppt
Example: • Determine the volume of the solid obtained by rotating the region bounded by and the x-axis about the y-axis.
Page 474 #1-3, 5, 6, 8 Homework http://mathdemos.gcsu.edu/mathdemos/shellmethod/