Final answer:
The area of the circle with a diameter of 16 miles is approximately 201.06192982 square miles.
Step-by-step explanation:
To find the area of a circle, we need to use the formula A = πr², where A is the area and r is the radius.
Since the diameter of the circle is 16 miles, the radius is half of the diameter, which is 8 miles. Plugging this value into the formula, we get:
A = π(8 miles)² = π(64 miles²)
≈ 201.06192982 square miles