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a milk man container is made of metal metal sheet in that shape of frustum of a cone whose volume is 104593/7cm the radii of 8cm and 20 respectively find the cost of metal sheet in making the containeeer at rate₹1.40per sq.cm
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metal used for making container = CSA of frustum + area of base
metal used for making container = CSA of frustum + area of base
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