19.167 square feet.
56 square feet is the area of 56 square feet a square foot is unit used to measure area. For example something could be 5 feet long, but it couldn't be 56 square feet long. A foot is a measurement of length, and a square foot is a measurement of area.
(12) x (8.25/12) = 8.25 square feet
If your talking about how much surface area it will cover, the answer is 5.5 square feet. 5.5 inches wide by 144 inches long=792 square inches. 792 square inches/12 inches per foot/12 inches per foot since your looking for square feet=5.5 square feet Another way to look at it is if you were to cut the 12 foot board down to 1 foot boards, you could double them up side by side and that would equal 11 inches x 12 inches. You would have 6 sets of 11 inches by 12 inches. So for each set you lose one inch in width for a total of 6 inches or a half foot. So you get 6 "square feet" minus the 6 inches total for the sets and end up with 5.5 square feet.
There are (exactly) 12 inches per foot. Therefore, the pallet is equal to 4.0 feet wide, 4.0 feet long, and 7 feet high. This figure is a square prism with a surface area equal to (2 X 4 X 4) + (4 X 4 X 7) = 144 square feet.
5.55 square feet.
51 inches wide x 30 inches long = 10.625 square feet.
8.25 square feet.
5 square feet
12.25 square feet.
2 square feet.
675 square feet.
13.5 square feet.
17.11 square feet.
Six square feet.
8 square feet.
24 square feet.