How do you calculate square yards?

Calculating square yards involves determining the area of a given space, specifically when measuring in yards. The correct formula to find the area in square yards is to take the length and width of the area and multiply them together. Since the question involves the concept of converting from square feet to square yards, the division by 9 is crucial because there are 9 square feet in a square yard (3 feet per side, and 3 feet x 3 feet = 9 square feet).

This means that when you multiply the length (in feet) by the width (in feet) to get square feet, you then divide that result by 9 to convert to square yards. It shows a clear method to ensure you’re accurately converting units from a smaller measurement to a larger one.

The other options don't adhere to the proper calculations for determining square yards. For instance, using addition instead of multiplication or applying the incorrect factors would yield incorrect area measurements. Therefore, the emphasis on multiplying length and width, followed by dividing by 9, effectively aligns with the mathematical principles of area calculation and unit conversion.