400 sq. miles = 27,878,400 sq. ft. x 100 = 2,787,840,000 sq. ft.
It depends on the size of the bricks and their orientation.
648
12
A "45-ft vegetable garden" seems to be so skinny that perhaps it could be surrounded by a single row of 90 bricks.
It depends on the size of the bricks.
400 sq. miles = 27,878,400 sq. ft. x 100 = 2,787,840,000 sq. ft.
1.377
4 bricks
It depends on the size of the bricks and their orientation.
648
12
92
169''9
A "45-ft vegetable garden" seems to be so skinny that perhaps it could be surrounded by a single row of 90 bricks.
400 ft = 0.07578 miles (1 mile = 5280ft)
20 x20 * * * * * And why not 10 ft x 40 ft? And why do you assume it is square or rectangular?