Question

What area of her floor is NOT covered by the rug?

Two squares, one inside the other. The shaded square has side length 9 feet and the larger outside square has side length 12 feet.
9 ft2
12 ft2
63 ft2

Answer 1

Area not covered = area of larger square − area of smaller square = 12^2 − 9^2 = 144 − 81 = 63 ft^2.