Maxine has 40 meters of fencing to build a rectangular pen for her dog. what is the maximum area for the pen? what are the dimensions of the pen?

A rectangle can be a square, but a square cannot be a rectangle.

If I treat this as a square (4 equal sides), I can get the area a lot easier. so 40 meters of fencing / 4 sides = 10 meters/side

Using Area formula, maximum area = 100 M^2