2.To investigate the efficiency of packing of objects of different shapes in a cuboid box.(efficiency is the percentage of box space occupied by the objects)
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We can also determine the efficiency for packing of spheres in a cuboid. Volume of sphere = 4/3 ðR3 Volume of cube = 8R3 Percentage efficiency = 4 ð R3 / 3 × 8 R3 = ð / 6 = 52 % Note When 81 and 64 tins were taken Hexagonal packing was more efficient but in case of 49 tins Square packing was more efficient.
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