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problem 277 mathcounts

label Mathematics
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What is the surface area, in square centimeters, of a cylinder with volume 250pi cm^3 and height 10 cm? Express your answer in terms of pi.

Oct 23rd, 2017

Volume of a cylinder is V = pi (r^2) h.  If h = 10, then the radius is 5.  The surface area of cylinder is

A=2πrh + 2πr^2 = 100pi + 50pi = 150pi



Nov 2nd, 2014

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Oct 23rd, 2017
Oct 24th, 2017
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