A rectangle has area 600 square inches Find a function which
     A rectangle has area 600 square inches. Find a function which models as perimeter in terms of its length L.  
  
  Solution
Given that the area of a rectangle is 600square inches.
Let the length be L inches and Width be the W inches.
Area=Length x Width
= LW
Given Area = LW = 600
w=600/L
Need to find the perimeter of the rectangle interms of Length.
Perimeter = 2(Length + Width)
= 2(L+W)
= 2(L+(600/L))
= 2(L2 +600) / L
Therefore, Perimeter of the rectangle interms of Length L is = [2(L2 +600) / L] inches

