Thinking Mathematically (6th Edition)

We know that $1~yd = 3~ft$ We can find the number of square feet in a square yard. $1~yd^2 = 1~yd \times 1~yd$ $1~yd^2 = 3~ft\times 3~ft$ $1~yd^2 = 9~ft^2$ There are 9 square feet in a square yard. Therefore, a square yard is 9 times greater than a square foot.