The garden has a 4m length and a 2m width. The perimeter of any given rectangle is two times the sum of the length and the width of the same rectangle.
Perimeter = 2 × (length of the rectange + width of the rectangle)
Perimeter = 2 × (4m + 2m) = 2 × (6m) = 12 meters.
So the gardens perimeter is equal to 12 meters.
Ramond needs to buy a fence for a garden whose parameter is 12 meters.