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# A right circular cylinder has a radius r and a height h.

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Current Student
Joined: 29 Jan 2005
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A right circular cylinder has a radius r and a height h. [#permalink]

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01 Sep 2006, 00:42
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A right circular cylinder has a radius r and a height h. What is the surface area of the cylinder?

(1) r = 2h â€“ 2/h

(2) h = 15/r â€“ r

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Manager
Joined: 30 Jun 2006
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01 Sep 2006, 01:44
Should the circular bases be considered here ?? if yes , then C and if no then B.

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Manager
Joined: 16 Aug 2006
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01 Sep 2006, 02:06
With bases considered I would say the ans = B

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CEO
Joined: 20 Nov 2005
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Schools: Completed at SAID BUSINESS SCHOOL, OXFORD - Class of 2008

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01 Sep 2006, 22:30
With both circular sides considered ans should be B.
Area = 30PI
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SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008

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01 Sep 2006, 22:30
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