Answer: the length of the side of the house is 14.9 yards
Explanation:
The shape of the foundation of the new home that Mr. and Mrs. Phillips are going to build is square.
The formula for determining the area of a square is
Area of square = L^2
Where
L represents the length of each side of the square.
The house will cover 222 square yards. It means that the length of the side of the house would be
√222 = 14.8997
Approximating to the nearest tenth, it becomes 14.9 yards