To cover that area to that depth - you would need just under 8 cubic yards of soil.
tweleve
10 feet = 3.333 yards and 120 inches.
7 yards = 21 feet = 252 inches.
16.02
2 yards, 2 feet, 7 inches 2 yards, 2 feet, 7 inches
39.1116 cubic yards
15.833... [cubic] yards.
tweleve
782 inches 21.72 yards 65.17 feet
10 feet = 3.333 yards and 120 inches.
three
16.02
7 yards = 21 feet = 252 inches.
2 yards, 2 feet, 7 inches 2 yards, 2 feet, 7 inches
There are 1.4444442987442 yards in 52 inches. There are 4 feet and 4 inches(4.33333301544189 feet) in 52 inches.
2.09 cu yds
One square yard is nine square feet, so 27 square feet is equivalent to 3 square yards. So 3 yards of concrete will cover 27 square feet.