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

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

Hi,



P= 2L +2w = 62m

   L + w = 31m

    L = 31-w

(31-w)w = 210

   w^2 - 31w + 210 = 0

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

Edges are 10m and 21m