Final answer:
To find the area of a square piece of land given its side length in miles, convert the measure to feet and square it. In this case, the area is 22,559,104 square feet.
Step-by-step explanation:
To find the number of square feet in a square piece of land, we need to convert the given measure from miles to feet. 1 mile is equal to 5280 feet. So, the length of each side of the square piece of land in feet is 0.9 miles * 5280 feet/mile =
4752 feet.
To find the area, we need to square the length of one side. So, the area of the square piece of land is
4752 feet * 4752 feet = 22,559,104 square feet.
Learn more about Calculating the area of a square