12 inches is 1 foot: so 3 feet times 1 foot is 3 feet.
There are 144 sq inches in a square foot. Doing the math gives an answer of 1,296 square inches.
1 square foot = (12 x 12) = 144 square inches 3 square feet = 432 square inches
Conver to feet (1/3 foot x 1/3 foot), then multiply.
Approximately 215.63 square feet.
3 x 30 = 90 square feet. 1 square foot = 144 square inches (12 x 12) So 90 square feet = 12,960 square inches
A foot contains 12 inches. Therefore, 6 inches is half a foot and 8 inches is 2/3 foot. (2/3)(1/2) = 1/3 square foot.
3 feet times 3 feet = 9 square feet
22feet 9inches
One feet is equal to 12 inches. Hence 6 feet by 3 feet is 216 square inches.
Approximately 4.083 square feet.
Turning inches into feet it will measure 1/3 of a square foot