784 square feet
3.11 square yards = 28 square feet.
19 feet by 28 feet gives you 532 square feet.
224 square feet. (8 x 28 = 224)
28 x 46 = 1,288 square feet.
434 square feet.
28 square feet.
Assuming you meant 28 feet x 28 feet, the answer is 784 sq feet.
If the dimensions are in feet then: 28*36 = 1008 square feet
1120 square feet
Total square yards: 87.11
15.361 square feet.