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 December 11th, 2011, 08:39 AM #1 Newbie   Joined: Dec 2011 Posts: 1 Thanks: 0 Equilateral cylinder problem. Given radius, find... Hi! Please, can someone help me to understand the following exercise?: The radius of the base of an equilateral cylinder measures 6 m. Determine: a) height b) total surface area c) volume
 December 11th, 2011, 08:42 AM #2 Math Team   Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,597 Thanks: 1038 Re: Equilateral cylinder problem. Given radius, find... Ask someone who knows English to help you repost this. Sorry.
 December 11th, 2011, 08:48 AM #3 Senior Member     Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,211 Thanks: 521 Math Focus: Calculus/ODEs Re: Equilateral cylinder problem. Given radius, find... For an equilateral cylinder, the diameter is equal to the height. The radius is given as 6 m, thus the diameter is 2r = 12 m. Then: a) height = 2r = 2(6 m) = 12 m. b) The total surface S area is: $S=2\pi r^2+2\pi rh=2\pi r$$r+2r$$=6\pi r^2$ Using the given data: $S=6\pi$$6\text{ m}$$^2=216\pi\text{ m^2}$ c) The volume V is: $V=\pi r^2h=\pi r^2$$2r$$=2\pi r^3$ Using the given data: $V=2\pi$$6\text{ m}$$^3=432\pi\text{ m^3}$
December 11th, 2011, 08:59 AM   #4
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Joined: Jul 2010
From: St. Augustine, FL., U.S.A.'s oldest city

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Math Focus: Calculus/ODEs
Re: Equilateral cylinder problem. Given radius, find...

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As originally posted, it was sill understandable. I cleaned it up some though!

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