A sprinkler
12 feet square equals 124 square feet garden 11ftx11ft equals 121 square ft garden
Water vascular system
15 feet
Water would pour into your garden as soon as its level was greater than 4 feet. It would continue to pour in until the level of the water above the ground level of your garden subsided to below 4 feet. THis may or may not happen. It would depend on the volume of water available to fill the surrounding area to a depth greater than 4 feet.
5 feet
15 feet
It is 12 square feet
If the area of the garden is 81 square feet and the perimeter is 36 feet, the solution is that the garden is a square 9 feet x 9 feet, where 4 x (side) =36.
Width = 16 feet Length = 38 feet
through the tube feet
200.96 square feet.
Each side is 5.5 feet and 4 times 5.5 = 22 feet which is the perimeter of the garden