18.
18 x 18 = 324 square feet
There are 36 square yards in a room 18 feet by 18 feet
Area = Length * Width= 18 * 18 = 324 Square Feet
18 feet.
The answer will depend on whether it is 18 inches, 18 feet, 18 yards, 18 furlongs, etc.
It would be about 56.5 feet.
There are: 8 times 18 = 144 square feet
18 inches=1.5 feet
18 feet is equal to 5,486.4 millimetres
18 feet x 3 feet = 54 square feet
6 Yards = 18 Feet. 1 yard = 3 Feet. 18 18
There are: 18*15.5 = 279 square feet