Question 864699
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Hi,
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A = Lw = (w+4)w = 60in^2
       w^2 + 4w - 60 = 0
       (w + 10)(w-6) = 0    (Tossing out the negative solution for unit measure)
                w = 6in  and L = 10in   {{{6+4}}}
and..checking
 (6in)(10in) = 60in^2