1. When each edge of a cube is decreased by 1cm,its volume is decreased by 91cm3.Find the length of a side of the original cube. 2. Six square-based pyramids fit exactly onto the side faces of a cube of side 4cm.If the volume of the object formed is 256cm3,find the height of each of the pyramids

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4 more than 3 month no body in dis great site can help on dis problem.4 cup


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