12 feet X 21 feet / 9 sq feet/sq yard = 28 sq yards
28*25 = 700 sq ft
2.6 square meters.
28 * 15 SQUARE feet = 420 sq ft = 39.02 sq metres.
9 sq ft = 1 sq yard so 28 ft * 18 ft = 28*18 sq ft = 56*9 sq ft = 56 sq yards.
12' x 21' (252 square feet) = 28 sq. yards.
12 feet X 21 feet / 9 sq feet/sq yard = 28 sq yards
28*25 = 700 sq ft
21 square yards = 189 square feet.
12 ft * 28 ft = 12*28 sq ft = 336 sq ft
If the dimensions are in feet then: 28*36 = 1008 square feet
Assuming you meant 28 feet x 28 feet, the answer is 784 sq feet.
2.6 square meters.
53' x 28' = 1,484 square feet.
28 * 15 SQUARE feet = 420 sq ft = 39.02 sq metres.
9 sq ft = 1 sq yard so 28 ft * 18 ft = 28*18 sq ft = 56*9 sq ft = 56 sq yards.
1 acre = 43560 sq ft, 28 acres = 1,219,680 sq ft