There are 9 sq feet in a square yards. So this means it is 64 square feet.
18 feet is 6 yards, and 21 feet is 7 yards. 6 multiplied by 7 is 42. Therefore, it's 42 square yards.
5 ft*7ft = 5/3 yards*7/3 yards = 35/9 square yards = 3.88... sq yards.
7 sq yd = 63 sq ft
7 yards 2 feet = 23 feet
7*5 = 35 square yards
7' x 7' (49 square feet) = 5.44 square yards.
9.33... sq yards
18 feet is 6 yards, and 21 feet is 7 yards. 6 multiplied by 7 is 42. Therefore, it's 42 square yards.
63... since there are 9 square feet in a square yard.
5 ft*7ft = 5/3 yards*7/3 yards = 35/9 square yards = 3.88... sq yards.
21 square feet
There is more than one way to work this out, here is an example, multiply 7 feet by 10 feet to get the answer in square feet, in this case it's 70 square feet, there are 9 square feet in a square yard, so divide 70 by 9 to get the answer, which is approx 7.78 square yards (7.77777778 square yards exactly)
7
7 feet by 14 feet = 98 square feet 98 square feet by 4 feet = 392 cubic feet There are 9 square feet in a square yard, and there are 29 cubic feet in a cubic yard.... so 392 cubic feet = 14.519 cubic yards
7 sq yd = 63 sq ft
7 yards 2 feet = 23 feet
7*5 = 35 square yards