SOLUTION: A dog pen mearures 4 meters wide adn has an anrea of 20 square meters. What is the perimeter of the pen in meters?

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Hi,

     .

A = Lw

20m^2 = L(4m)

5m = L

P =  2L + 2w 

P = 2(5m) + 2(4m) = 18m