Question: A farmer wants to build a rectangular pen with an area of 1200 square meters to keep his animals. He has 200 meters of fencing

A farmer wants to build a rectangular pen with an area of 1200 square meters to keep his animals. He has 200 meters of fencing material and wants to use it to enclose three sides of the pen, with the fourth side being a wall of the barn. What should the dimensions of the pen be in order to maximize the area that the animals can graze?

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