Question 1122303
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A farmer has 90 meters of fencing and would like to use the fencing to create a rectangular garden in the middle of an open field. 

Let l represent the varying length of the rectangular garden (in meters).
a. Suppose the length of the garden is 10 meters (L=10) 
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Why start with "1" and then change to "L"?  Start with and stay with "L".


If w is width, then  {{{90+2*10+2*w}}}, and you can find w, and compute area of the garden.   {{{w*L}}}