40 x 90 = 3600 square feet. No exponents are necessary.
162/3 sq yards
10,800 square feet.
A square yard is 3 feet by 3 feet, 9 square feet in total. Therefore 2 square yards is equal to 18 square feet.
First of all divide 2" by 12" to get 0.1666 feet; then multiply 0.1666' x 40' x 40' which equals 266.56 cubic feet; Multiply 266.56 cubic feet x 0.03704 to get 9.8734; Therefore, 2 inches of topsoil from an area 40 feet by 40 feet = 9.87 cubic yards. Hope that helps. The number 0.03704 is purely a conversion rate for cubic feet to cubic yards.
10ft. By 10ft.-100 square feet
The area of a room 40ft by 40ft = 1,600 square feet.
10 feet x 10 feet = 100 square feet.
To convert square feet to square meters, you need to multiply by 0.0929. Therefore, 10ft x 10ft is equal to 100 square feet. When you multiply 100 square feet by 0.0929, you get approximately 9.29 square meters. So, 10ft x 10ft is approximately 9.29 square meters.
The diagonal is 14.142 feet.
6ft by 10ft = 60 square feet
Approximately 127.32 square feet.
The AREA of a circle that has a radius of 40ft is 5026.54825 square feet
125 square feet
The area is the product of (Length) times (Width)6ft by 10ft = (6 x 10) = 60 square feet.
20 feet x 10 feet = 200 square feet
12,000 square feet. Multiply length by width - the result is the area in square feet.