12" x 12" = 1 square foot. 400 of them are required in order to cover 400 square feet.
1 acre = 43,560 square feet400 ft x 400 ft = 160,000 square feet = (160,000 / 43,560) = 3.673 acres (rounded)
one square foot is equal to 0.0929 square meters, multiply this by 400 and the answer is 37.16 square meters
400 square feet (20 x 20 = 400)
400 sq cm equals 0.43 square feet.
25 x 16 = 400 square feet.
If that is 20ft by 20ft then there are 400 square feet
A room measuring 20' x 20' = 400 square feet
1 foot = 0.3048 meter 400 sq feet = 400 x 0.3048 x 0.3048 sq meters
1 foot = 0.3048 meter 400 sq feet = 400 x 0.3048 x 0.3048 sq meters
12" x 12" = 1 square foot. 400 of them are required in order to cover 400 square feet.
None. Board foot is a measure of volume not area.
There are 44.44 square yards in a room that is 20 feet x 20 feet (400 square feet). 20 feet x 20 feet = 400 square feet 400 square feet x 0.111111111 square yards/1 square foot = 44.44 square yards 1 square foot = 0.111111111 square yards
400. That's because there are four six-by-six tiles in each square foot. 4 tiles per square foot X 100 square feet = 400 tiles.
1 acre = 43,560 square feet400 ft x 400 ft = 160,000 square feet = (160,000 / 43,560) = 3.673 acres (rounded)
Just about 400
A tile measuring 2 foot by two foot (which, incidentally, is an unusually large tile) has an area of 4 square feet, so it would take 100 such tiles to cover a 400 square foot floor.