Answer:
The bottom left.
Explanation:
To find the side length of a square using the perimeter, we would divide the perimeter by 4.
The top left figure divides the perimeter by 2; this is not correct.
The top right figure divides the side length by 4; this is not correct.
The bottom right figure divides the side length by 2; this is not correct.
The bottom right figure divides the perimeter by 4; this is correct.