340 sq. ft.
11,923,200 sq in. of sand.
It depends on how deep the water is over the area it covers. 1 gallon = 231 cubic inches. If the water is 1 inch deep, it can cover an area of 231 square inches. If it's 231 inches deep, it can only cover an area of 1 square inch.
An area of 1 square inch!
The area of a 7-inch circle is: 38.48 square inches.
The answer you seek is printed on the bag; it should be fairly prominent.
they covered area
it covers about 193
42154255
One square = 100 sq ft. So, 10 squares will cover 1000 sq ft.
"Square feet" aren't things that are used to cover area."35 square feet" is an amount of area that you have to cover with something.
Area of 3 inch square = 9 sq inches = 9/144 sq feet. So fabric required = 144*9/144 sq ft = 9 sq ft = 1 sq yard.