18feet by 17feet converts to 306 feet square or 28.4 meters square.
36 square yards
Sq footage = 18*25 = 450 square feet.
Multiplying 18 by 28 will give you your square footage. Should be 504sq ft.
multiplythe width by length ie 18feet x 12feet =216 divide by 9 =24sq yards
144 square meters
216 inches
About 14 square meters. (13.935456 square meters)
718 square feet = about 66.7 square meters. (66.7043827 square meters)
About 0.84 square meters (0.83612736 square meters)
24 square meters
24.08 square meters.