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September 16, 2014

September 16, 2014

Posted by **Carol** on Monday, February 27, 2012 at 3:28pm.

- college algebra -
**Steve**, Monday, February 27, 2012 at 4:12pmV = pi r^2 h

h = V/pi*r^2 = 100/(pi*r^2)

A = 2pi*rh + 2pir^2

A = 2*pi*r*100/(pi*r^2) + 2pi*r^2

= 200/r + 2pi*r^2

A(3) = 200/3 + 2pi*9 = 123.2 ft^2

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