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Find the no.of coins,1.5cm in diameter and 0.2 com thick,to be melted to form a right circular cylinder of height 10 cm and diameter is 4.5 cm.find volumes

of both


Let there be n no. of coins...according to the question.. volume of n of coins =volume of the right circular cylinder... so...22/7x15/20x15/20xn=22/7x45/20x45/20x10 => n=450...so..volume of coins= volume of circular cylinder =159.107 cubic cm
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