12' x 18' = 216 square feet.
12 feet x 18 feet = 216 square feet.
864
18" = 1.5 feet 18" x 18" = 1.5-ft x 1.5-ft = 2.25 square feet
18 in x 18 in = 1.5 ft x 1.5 ft = 2.25 sq feet.
10' x 18' = 180 square feet.
13 x 18 = 234 square feet.
10' x 18' = 180 square feet.
5260 x 5260 x 18 [ square feet ]
12' x 18' = 216 square feet.
18 x 18 = 324 square feet
2.25 square feet.
18 x 7 = 126 square feet
There are: 18*15.5 = 279 square feet
2.25 square feet.
2.25 square feet.
234 square feet (18 x 13 = 234)/