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November 26, 2014

November 26, 2014

Posted by **Mary** on Friday, December 3, 2010 at 3:44pm.

- math insufficient data -
**PsyDAG**, Friday, December 3, 2010 at 4:04pmYou failed to indicate how many feet of fencing Kira has.

- math -
**Reiny**, Friday, December 3, 2010 at 5:02pmlet the perimeter be P, where P is a constant

let the length be y and the width be x

2x + y = P

y = P - 2x

Area = xy

= x(P-2x) - Px - 2x^2

d(area)/dx = P - 4x

= 0 for a maximum area

4x = P

x = P/4

y = P - P/2 = P/2

So the long side should be half the perimeter, and the short side whould be a quarter of the perimeter.

- math -
**fatou**, Friday, December 3, 2010 at 8:19pmi need help with my math homework

- math -
**Anonymous**, Saturday, April 16, 2011 at 11:21amif the perimeter of a rectangle is 184cm and the width is 39cm calculate its length

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