Final answer:
The area of a square with a side length of 8.5 feet is 72.25 square feet.
Step-by-step explanation:
The area of a square can be found by multiplying the length of one side by itself. In this case, the side length of the square is 8.5 feet. So, the area can be calculated as 8.5 * 8.5 = 72.25 square feet.
Learn more about Calculating the area of a square