



 
Avien, Suppose the sides of the rectangle are of length x and y. The area of the rectangle is
Look at the diagram. What does Pythagoras theorem tell you about the relationship among x, y and L? Use this to write the area as a function involving only x and L. L is fixed (a constant) so you can use the calculus you know to find the value of x that maximizes the area. Penny  


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