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To calculate the weight of a concrete slab measuring 4 feet by 4 feet with a thickness of 4 inches, first convert the thickness to feet: 4 inches is 1/3 feet. The volume is then 4 ft x 4 ft x (1/3 ft) = 16/3 cubic feet. Concrete typically weighs about 150 pounds per cubic foot, so the weight of the slab is approximately 16/3 ft³ x 150 lbs/ft³ = 800 lbs.

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7mo ago

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