Final answer:
Each side of the square garden is 71 feet long.
Step-by-step explanation:
To find the length of each side of a square garden, we need to divide the perimeter by 4.
Since the perimeter of the square garden is given as 284 feet, we divide 284 by 4 to get the length of each side.
Therefore, each side of the square garden is 71 feet long.