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September 20, 2014

September 20, 2014

Posted by **Piggy** on Friday, March 2, 2012 at 10:23pm.

- geometry -
**Steve**, Saturday, March 3, 2012 at 4:08pmv = 1/3 pi * r^2 * h

h = 4r

36pi = 1/3 pi * r^2 * 4r = 4/3 pi r^3

27 = r^3

r = 3

If you don't include the area of the base,

a = pi * rs = pi * r*sqrt(r^2 + h^2)

= pi * r*sqrt(r^2 + 16r^2)

= pi * r^2 * sqrt(17)

= 116.6 m^2

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