Answer:
The answer is B. 6 feet.
Explanation:
To solve this problem, we must remember that the formula for area of a square is given by A = s^2, where s represents the length of one of the sides.
Since we are given that the area of the square is 36, we can substitute this into the formula to get:
36 = s^2
Then, to solve for s, we should take the square root of both sides, which gives us:
s = 6
Therefore the correct option is B. 6 feet.
Hope this helps!