Answer:
2500
Step-by-step explanation:
For a given perimeter, the rectangular figure with the most area is known to be the square. Therefore, you would want to make all of the side lengths the same. Since you only need to enclose two sides, you can simply divide 100 by 2 to get two sides of 50 feet. The area of this enclosure is now 50*50=2500 square feet. Hope this helps!