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March 15th, 2017, 10:24 PM   #1
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volume of this shape

Please I need help to calculate this volume:



The base is an ellipse and a/b are its major/minor axes.

Thanks.

Last edited by skipjack; March 16th, 2017 at 10:22 PM.
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March 16th, 2017, 10:26 PM   #2
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Do you know how to find a volume of revolution?
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March 16th, 2017, 11:14 PM   #3
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@skipjack: Yes I know but in this case the base is not a circle it's an ellipse ! I found a solution if x=0 were the "axis of revolution". . But when x=a it's bit tricky....
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March 17th, 2017, 01:34 AM   #4
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If the volume for a circular base of radius a is V, the volume for the elliptical base is (b/a)V. The diagram seems poor, as the distance shown as 2$a$ is nothing like twice the distance shown as $a$.
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March 17th, 2017, 02:08 AM   #5
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March 17th, 2017, 02:36 AM   #6
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Ok
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File Type: jpg NewSketsh.jpg (23.5 KB, 2 views)
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March 20th, 2017, 10:56 PM   #7
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up !
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April 10th, 2017, 12:54 AM   #8
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UpĀ² !
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