51 inches wide x 30 inches long = 10.625 square feet.
1472
1 square foot = 12 inches wide by 12 inches long 12 inches by 12 inches = 144 square inches. 4 square feet = 4 x 144 = 576 square inches.
45" x 45" = 14.0625 square feet.
141.25 square feet.
170
There are 12 inches in a foot and 144 square inches in a square foot. So this would give you 8 square feet.
8.4 sq. ft.
74 inches is 6 feet and 2 inches.
(12) x (8.25/12) = 8.25 square feet
If you have a board that is 1 by 12 inches that is 10 foot long you will have 10 inches of board feet. This a math problem.
7' 7"
5.55 square feet.
85 inches
48 inches by 24 inches = 8 square feet.
51 inches wide x 30 inches long = 10.625 square feet.
675 square feet.