13' x 22' (286 square feet) = 26.57 square meters.
12 x 13 = 156 square feet.
13' x 13' (169 square feet) = 18.77 square yards. (divide square feet by 9 to get square yards)
A square with sides of 16 feet and 18 feet would be 288 square feet. 16 ft x 18 ft = 288 ft2
13 ft x 22 ft = 286 square feet
13 x 18 = 234 square feet.
234 square feet (18 x 13 = 234)/
234 square feet (13 x 18 = 234).
234 square feet.
234 square feet. Multiply length by width - the result is the area in square feet.
18 miles * 13 miles = 6,523,545,600 sq feet. (You did mean miles, didn't you?)
21.73931 sq m
156 square feet
19 x 13 = 247 square feet.
Since the units used for 13 and 18 are not given, it is not possible to give an answer.
10' x 18' = 180 square feet.
12 feet x 18 feet = 216 square feet.