12 feet X 40 feet = 480 square feet.
40*40 = 1600 square feet
If the room is rectangular, the area can be calculated as length x width.
8 by 12
Area = Length * Width 21 * 40 = 840 Square Feet
480ft
12 feet X 40 feet = 480 square feet.
12 feet
40*40 = 1600 square feet
If the room is rectangular, the area can be calculated as length x width.
40 square feet.
12 x 40 = 480 square feet
8 by 12
38.67 square yards, 40 to be on the safe side.
Area = Length * Width 21 * 40 = 840 Square Feet
When the length and width of the room are equal to 40 feet. In this way, you will have 40 x 40 equal 1,600 square feet.
9 square feet = 1 square yard Area of the floor = 12' x 30' = 360 square feet = 40 square yards