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A right circular cylindrical tank of diameter 2 m and length 40 m is to be constructed from a sheet of ironThe area of iron sheet required in m^2 is

The largest sphere is carved out from a cube of side 10.5 cm.the volume of sphere is

a hollow sphere of internal and external diameters 4 and 8 cm is melted into a cone of base diameter 8 cm height of cone is

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by rajusetu

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