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I assume you mean a rectangle. You can:* Convert everything to feet, then multiply; or:
* First multiply, then divide the result (which is in square inches) by 144, to convert to square feet.
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How many square feet is 15 x 21 inches?
It is 2.1875 square feet.
How many square feet in a 21' x 21' room?
21*21 = 441 square feet.21*21 = 441 square feet.21*21 = 441 square feet.21*21 = 441 square feet.
How many feet are in twenty one inches?
21 inches equals how many feet?
How many square feet is a floor 21 by 3 feet?
21*3 = 63 square feet.
How many feet are there in 21 inches?
There are 12 inches in one foot. Therefore, 21 inches is equal to 21/12 = 1.75 feet.
How many square feet is 99 inches by 21 inches?
14.4375 square feet.
How many square inches in 21 square feet?
3,024 square inches.
How many square feet are in 61 inches x 21 inches?
61" x 21" = 8.89583 square feet.
How many square feet is 15 x 21 inches?
It is 2.1875 square feet.
How many square feet is 21 inches?
there is no answer to this question
How many square feet are there in a room that measures 19 feet 1 inch by 21 feet 10 inches?
19 feet 1 inch by 21 feet 10 inches = 416.65 square feet.
How many square feet in 216 inches x 14inches?
144 square inches = 1 square footArea = (216-in x 14-in) = 3,024 square inches = 21 square feet
How many square feet in 14 inches x 21 inches?
Multiply the two together to get 294 square inches. Divide by 144, the number of square inches in a square foot, and you get 2.04.
How many square inches are in 24 square feet?
1 foot = 12 inches(1 foot)2 = (12 inches)2 = (12)2 x (inches)21 square foot = 144 square inches2 square feet = 288 square inches..24 square feet = 3,456 square inches
How many square feet in 32 inches x 21 inches?
32*21 = 672 sq inches = 672/(12)2 = 42/3 sq feet
How many square feet in a 21' x 21' room?
21*21 = 441 square feet.21*21 = 441 square feet.21*21 = 441 square feet.21*21 = 441 square feet.
21 feet is how many inches?
21 feet is 252 inches
