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September 16, 2014

September 16, 2014

Posted by **Lisa** on Sunday, December 30, 2012 at 4:37am.

thanks!

- math -
**Steve**, Sunday, December 30, 2012 at 5:47amw(w+2) = 36

w^2 + 2w = 36

w^2+2w+1 = 36+1

(w+1)^2 = 37

w = -1±√37

we want a positive width, so w = -1+√37 = 5.09

check: 5.09*7.09 = 36.1

close enough

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