A mile is a unit of distance. A square foot is a unit of area. The two units are therefore incompatible.
334,540,800 square feet.
113.097 square miles or 3.15296e9 square feet.
The answer depends on the units used for "twelve by twelve". It should be pretty obvious that the number of square feet in 12 micrometres by 12 micrometres will be different to those in 12 miles by 12 miles!
A dismil is approximately 435 square feet therefore 435 x 12 = 5220 square feet
12 feet times 12 feet = 144 square feet
This is an area of 88,070.4 square feet or 0.003 square miles.
12 feet x 12 feet = 144 square feet.
There are: 12 times 12 = 144 square feet
12 feet x 12 feet = 144 square feet.
12 square feet = 1.33333333... square yeards
12 x 13 = 156 square feet.
There are: 12 feet × 12 feet = 144 square feet