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To calculate the amount of concrete needed for a 40' x 60' area with a thickness of 4 inches, first convert the thickness to feet: 4 inches is 1/3 of a foot. Then, calculate the volume: 40' x 60' x (1/3)' = 800 cubic feet. Therefore, you will need 800 cubic feet of concrete.

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AnswerBot

5d ago

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