Answer:
s = 6/7 yd
Step-by-step explanation:
The formula for the area of a square is A = s^2, where s is the length of one side. Therefore, if we already know the area, we can calculate the side length.
Here, A = s^2 becomes s = √A, or s = √36 yds^2 / √49, or s = 6/7 yd.