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 Post subject: What did I do wrong here?Posted: Tue, 15 May 2012 04:09:11 UTC
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Joined: Sat, 20 Nov 2010 21:17:02 UTC
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Please see my attempt. The question is there, did I visualize it correctly? I believe there is a ring remaining when I minus the inside bowl-like solid, and I made my cross-sections orthogonal to the axis of rotation

NOTE: I misread the question when it says to rotate about the y-axis. Assume this is rotation by x-axis. If so, did I do it correctly?

http://i1084.photobucket.com/albums/j40 ... MG002a.png
http://i1084.photobucket.com/albums/j40 ... MG002b.png

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 Post subject: Re: What did I do wrong here?Posted: Tue, 15 May 2012 05:19:44 UTC
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Joined: Wed, 30 Mar 2005 04:25:14 UTC
Posts: 13990
Location: Austin, TX
A-R-Q wrote:
Please see my attempt. The question is there, did I visualize it correctly? I believe there is a ring remaining when I minus the inside bowl-like solid, and I made my cross-sections orthogonal to the axis of rotation

NOTE: I misread the question when it says to rotate about the y-axis. Assume this is rotation by x-axis. If so, did I do it correctly?

http://i1084.photobucket.com/albums/j40 ... MG002a.png
http://i1084.photobucket.com/albums/j40 ... MG002b.png

Yes.

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