Final answer:
The side length of a square with area 121x4y2 is 11x2y.
Step-by-step explanation:
The side length of a square can be found by taking the square root of its area. In this case, the area of the square is 121x4y2. To find the side length, we take the square root of this expression:
Side length = √(121x4y2)
Since the square root of a product is equal to the product of the square roots, we can simplify the expression:
Side length = √121 ∙ √x4 ∙ √y2
Since the square root of 121 is 11, the final expression is:
Side length = 11x2y