863 Sq. Ft.
There are 9 square feet in a square yard. A room 20 x 12 has 240 square feet. Divide that by 9 and you get 26.67 square yards.
9*12 = 108 square feet.
The square footage is 81 sq ft (9 x 9). Note, if you are buying flooring materials, you will need to get more - probably at least 10% waste which will bring you to around 90 sq ft. (it could be more for carpet since you need to order in 12 ft rolls - prob 111sf needed)
Convert the seven (7) inches into a decimal (12 inches = one foot) 7 inches divided by 12 inches = .583 inches Now multiply the length times the width.. 13 feet x 19.583 = 254.58 square feet If you want to know how many yards are in this area, divide this by 9 (there are 9 square feet in a yard) 254.58 divided by 9 = 28.29 square yards
12 x 9 = 108 ft2
It I'd 12 multiplied by 9 aka 108.
180 square feet. Just multiply length by width - the answer is the square footage.
Square footage is length times height. In this case measure the entire length around the room and multiply it by the height of the wall. Assuming the 11 is the length of 2 walls, the 12 is the length of the other two walls and the 9 is the height of the walls the equation would be (11 + 12 + 11 + 12) x 9 = You do the math.
135
12X9.6 = 115.2 Sq Ft.
8' x 9' = 72 square feet.
12'9" x 9'9" = 12.75' * 9.75' = 124.3125 sq ft
216 sq ft
9 x 11 = 99
16 by 9 is equal to 16 times 9....which is 144
108