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Q: How many square feet in 9feet by 40feet?

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to find square feet multiply length by width. in this example 40x60 the answer is square feet 40x60=2400sqft

9'10" * 30' = 910/12 * 30 = 295 square feet

3yards = 9feet add the 2feet to 9feet and you get 11feet total

9 feet is equal to 108 inches.

1 square foot is 0.111 square yards. The floor area is 9feet x 21feet = 189 square feet. Therefore, the total square yards is: 189 square feet x 0.111 square yards/foot squared = 21 square yards Therefore, there is 21 square yards of floor.

3feet

regina wants to cover one wall of her room with wallpaper.The wall is 9feet high and 15 feet wide.There is a doorway in the wall that is 3 feet high and 7 feet wide. how many square feet of wallpaper will she need to buy>

Use Pythagoras' theorem: 152-92 = 144 and the square root of 144 is 12 Answer: 12 feet

3 yds.

9ft = = 274.32 cm

If you multiply 8 x 15 you should be close...

10279 square feet.

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