420 square feet. (21 x 20 = 420)
8 inches = 8/12 ft = 2/3 or .66 ft 20ft X 21ft = 420ft2 X .66ft or 2/3ft = 280ft3 (feet cubed )
To convert square feet to square meters, you would multiply by 0.0929. Therefore, for a 20ft x 20ft area, you would calculate 20ft x 20ft = 400 square feet. To convert this to square meters, you would multiply 400 by 0.0929, resulting in an area of approximately 37.16 square meters.
That would be 63 square feet
20ft x 28ft = 560ft2
Hint: try multiplying 20 and 40... 20 ft x 40 ft = 800 ft2 (or 800 square feet)
400 square feet
18ft*20ft = 360 square feet
If that is 20ft by 20ft then there are 400 square feet
8 inches = 8/12 ft = 2/3 or .66 ft 20ft X 21ft = 420ft2 X .66ft or 2/3ft = 280ft3 (feet cubed )
21 x 37 = 777 (square feet).
882 square feet.
To convert square feet to square meters, you would multiply by 0.0929. Therefore, for a 20ft x 20ft area, you would calculate 20ft x 20ft = 400 square feet. To convert this to square meters, you would multiply 400 by 0.0929, resulting in an area of approximately 37.16 square meters.
That would be 63 square feet
20ft * 15ft = 300 square feet.
All you need to do is multiply the length by the width, and it doesn't matter in what order you do it. 20ft X30ft= 600 square feet.
20 feet x 10 feet = 200 square feet
400 square feet