Q: 640 inches how many square feet?

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There are 43,650 square feet in one acre. (There are 640 acres in one square mile and 27.878,400 square feet in the same area. 27,878,400 divided by 640 equals 43,650. To find how many square inches in an acre, multiply number of square feet by 144.

Assuming the bricks are 4 inches wide and 16 inches long. Then the area of one brick is 64 square inches = 64/144 = 4/9 square feet, hence to cover 640 square feet we need (640)/(4/9) = (640x9)/4 = 160x 9 = 1440

There are 12 inches in a foot, so 640/12 = 53.3333 feet.

6 inches = 0.5 foot27 cubic feet = 1 cubic yardVolume = (640 x 0.5) = 320 cubic feet = 1123/27 cubic yards = 11.852 (rounded)

43560 square feet in an acre. 640 acres in a square mile.

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There are 43,650 square feet in one acre. (There are 640 acres in one square mile and 27.878,400 square feet in the same area. 27,878,400 divided by 640 equals 43,650. To find how many square inches in an acre, multiply number of square feet by 144.

640 square feet = 71.1 square yards.

Assuming the bricks are 4 inches wide and 16 inches long. Then the area of one brick is 64 square inches = 64/144 = 4/9 square feet, hence to cover 640 square feet we need (640)/(4/9) = (640x9)/4 = 160x 9 = 1440

640 acres = 27,878,400 square feet.

There are 12 inches in a foot, so 640/12 = 53.3333 feet.

640 acres = 27,878,400ft²

6 inches = 0.5 foot27 cubic feet = 1 cubic yardVolume = (640 x 0.5) = 320 cubic feet = 1123/27 cubic yards = 11.852 (rounded)

About 53.33 ft

43560 square feet in an acre. 640 acres in a square mile.

1 foot = 12 inches therefore 53 feet 4 inches = 640 inches 1 inch = 0.0254m (or 2.54cm) therefore 53 feet 4 inches (640 inches) = 16.256m

80 feet x 8 feet = 640 square feet.

71.11 square yards.