The best way to do this is convert it all to inches. 148 inches by 143 inches. This gives you 21,164 square inches. Divide by 144 to get a total of 147 square feet.
146.9722... sq feet.
80 square feet x 15 = 1200 square feet.
12 feet x 12 feet = 144 square feet.
10' x 18' = 180 square feet.
10.8 x 8 = 86.4 square feet.
150 feet x 200 feet = 150 x 200 = 30,000 (square feet).
There are 22.4825 square meters in 11 feet x 22 feet (242 square feet). 11 feet x 22 feet = 242 square feet 242 square feet x 0.09290304 square meters/1 square foot = 22.4825 square meters 1 square foot = 0.09290304 square meters
156 square feet
210 square feet. Length x width = square feet.
80 square feet x 15 = 1200 square feet.
238 square feet
20 feet x 4 feet = 80 square feet.
17 feet x 16 feet = 272 square feet
35 feet x 35 feet = 1225 square feet
14' x 52' = 728 square feet
2' x 4' = 8 square feet.
11.5 x 9.5 = 109.25 square feet.
19 x 13 = 247 square feet.