Question A hollow cylinder, open at one end, is constructed of thin sheet metal. The total external surface area of the cylinder is 192pi cm^2. T
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The total external surface area of the cylinder is 192pi cm^2. The cylinder has a radius of r cm and a height of h cm. (i) express h in terms of r and show that the volume, Vcm^3 of the cylinder is given by. V=pi/2(192r-r^3).
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