The units are incompatible.
Even though this may be true you can change them using Dimensional Analysis .
First you do 9 sq ft. = 1 sq yard. Then you do 100 sq yards times 9 = 900. That's 900 sq ft. then you could simplify by finding the square root of 900 which is 30.
For 100 yards of concrete for your new driveway it is 2700 square feet.
100 square miles is equal to 2,787,840,000 square feet.
1 - The definition of a square (in roofing) is a 10 ft x 10 ft area or 100 sq. ft area.
There are 9 sq feet in a square yard. Here the calculation gives you an answer of 900 square feet.
100 square inches = 0.69444 square feet
100 x 25 = 2500 square feet.
4,356,000 square feet is are in 100 acres.
100 square feet
100 square meters = ~1,076.4 (1,076.39104) square feet.
10,000 square feet.
200*100 = 20000 square feet
250 feet by 100 feet is 25000 square feet.
100 square inches = 0.69444 square feet
100 square feet = 92,900 square cm
100 feet x 100 feet = 10,000 square feet.
100 feet x 100 feet = 10,000 square feet.
100 x 25 = 2500 square feet.
100 (square meters) = 1,076.39 square feet.
14 400 Square inches = 100 square feet
In the building trades a square is the measurement of 100 square feet. 10 feet by 10 feet = 100 square feet.
4,356,000 square feet is are in 100 acres.