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December 21, 2014

December 21, 2014

Posted by **Anonymous** on Friday, October 28, 2011 at 1:16pm.

- Calculus -
**Steve**, Friday, October 28, 2011 at 4:33pmp = W + 2L + πW/2 = 47

2L = 47 - W - πW/2

L = 23.5 - 1.28W

A = WL + π(W/2)^2/2

= W(23.5 - 1.28W) + .327W^2

= 23.5W - 1.28W^2 + .327W^2

= 23.5W - .953W^2

max area at W = 23.5/1.906 = 12.3 ft

L = 7.756

perimeter = 12.3 + 2*7.756 + 1.57*12.3 = 47.1 (close enough)

area = 12.3*7.756 + 3.14*6.15 = 114.7 ft^2

- Calculus -
**Anonymous**, Friday, October 28, 2011 at 9:36pmit says incorrect

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