Question 170
Carina is drawing the plan of a rectangular garden that will have one of its sides on a straight wall of stones. She bought $140~\mathrm{m}$ of fence, in pieces of $1~\mathrm{m}$ each, to fence the other three sides. She cannot cut these pieces and must spend them all. 
a. If the two sides adjacent to the stone wall have $40~\mathrm{m}$ each, what will be the length of the third side?
b. Is it possible that the largest of the sides to be fenced have has $85~\mathrm{m}$? and $65~\mathrm{m}$? justify.
a. If the two sides adjacent to the stone wall have $40~\mathrm{m}$ each, what will be the length of the third side?
b. Is it possible that the largest of the sides to be fenced have has $85~\mathrm{m}$? and $65~\mathrm{m}$? justify.