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(1.76 Yards.)--12ftx12ft=144Sq ft-----4in=.33ft-------144sq ft x.33ft=47.52 cubic ft

there are 27 cubic ft in a cu yd---(3ft x3ft x3ft = 27 cu ft)

47.52/27 = 1.76

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Q: How much concrete is needed for a 12 sq ft by 4 inch thick slab?
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