Answer:
9 yards
Step-by-step explanation:
A square has 4 equal sides, this means the 2 sides we will multiply to get the area are going to be the same. Since it says 81 yards squared and the shape is a square, we can do the square root of 81 which is 9.
Answer: 9x9 or 3x27
Step-by-step explanation:
squares are usually the same length but i would go with 9x9