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January 31, 2015

January 31, 2015

Posted by **Anonymous** on Friday, July 19, 2013 at 10:22pm.

- math -
**bobpursley**, Friday, July 19, 2013 at 10:24pmarea=lw

lw=72 or l=72/w

P=2(l+w)=2(72/w + w)

44=2(72/w+w)

22w=7+w^2

w^2-22w+72=0

(w-18)(w-4)=0

so w is 18, or 4, and you can solve for the length from l=72/w

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