A square has a perimeter of 48 units. If a circle is inscribed within this square, what is the area of the region inside the square but outside the circle?

✓ Correct Answer: Option A

The side length of the square is 48/4 = 12 units. Its area is 12^2 = 144. The diameter of the inscribed circle is equal to the side length, so its radius is 12/2 = 6 units. The area of the circle is π(6^2) = 36π. The shaded area is 144 - 36π.