5.3 square feet.
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To convert square inches to square feet, you need to divide the total number of square inches by 144 (since there are 144 square inches in a square foot). In this case, 24 x 24 inches equals 576 square inches. Dividing 576 by 144 gives you 4 square feet. Therefore, there are 4 square feet in a 24 x 24 inch area.
In 1 foot there are 12 inches. So in 24 feet there are 24 x 12 = 288 inches.
Well, isn't that a happy little question! To find the square footage of a rectangle, you multiply the length by the width. In this case, 18 inches by 24 inches equals 432 square inches. To convert that to square feet, you divide by 144 (since there are 144 square inches in a square foot), giving you 3 square feet. Happy painting!
23.5 square feet
4 square feet.