Q: 20ft by 40ft is what is square foot?

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420 square feet. (21 x 20 = 420)

360ft² = 33.45m²

Since a square has right angles, you can use the Pythagorean Theorem to calculate the diagonal. Specifically, the diagonal of a square is equal to the length of a side, multiplied by the square root of 2.

How many square metre is 18ft by 20ft

20ft x 28ft = 560ft2

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If that is 20ft by 20ft then there are 400 square feet

3.28084 ft = 1 meter 20 ft = (20 / 3.28084) = 6.096 meters 40 ft = (40 / 3.28084) = 12.192 meters 20ft by 40ft = 6.096 m by 12.192 m. This is what you asked for. You didn't ask for the area of a plot measuring 20ft by 40ft. If you wanted the area, you would have had to: -- ask for "square meters" -- guarantee that the plot is rectangular, i.e. the corners are right angles

100

it can have a wingspan up to about 20ft and is about 40ft long/tall

Area of a circle in square feet = pi*radius2

The area of a room 40ft by 40ft = 1,600 square feet.

20ft X 6.25ft = 62.5 ft2

400 square feet

well one container is 20feet long and the other container is 40 feet long. the difference is 20feet. 40ft-20ft = 20ft

18ft*20ft = 360 square feet

How high is the room, and how tall ar the tables?

The AREA of a circle that has a radius of 40ft is 5026.54825 square feet