The area of a square room in square units can be represented by 169x2y4. What is the perimeter of the room?

The side length of a square is the square root of its area. Since √(169x²y⁴) = 13|x|y², the perimeter is 4 × 13|x|y² = 52|x|y² units. So the perimeter is 52|x|y² units, choice D.

AI-written and checked against the verified answer.