SOLUTION: the perimeter of a rectangle is 62 m. Find the edges if its surface is 210 m

Question 874458: the perimeter of a rectangle is 62 m. Find the edges if its surface is 210 m
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,



P= 2L +2w = 62m

   L + w = 31m

    L = 

(31-w)w = 210

   w^2 - 31w + 210 = 0

  (x-21)(w-10) = 0

Edges are 10m and 21m 

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