its works out at 20.32635 meters square
18 feet
108 square feet (9 x 12 = 108).
Just multiply the 21 by the 12 and you have 252 square feet.
A room measuring 13 feet 6 inches by 13 feet 9 inches has an area of: 182.63 square feet.
13.378 square meters.
Turning inches into feet it will measure 1/3 of a square foot
20.9032 square meters.
166
4 yards. If you mean 12 square feet, the answer is 1.33 square yards.
That depends on the length and width of the room - there are many different rectangles that have the same surface, in this case, 100 square feet. 100 square feet = 14,400 square inches
Total square feet: 180.0 (15 x 12 = 180)