find the number of coins of 1.5cm diameter and 0.2cm thickness to be melted to form a right circular cylinder of height 10cm and diameter 4.5cm
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(10*π*2.25*2.25)/(0.2*7.5*π*7.5)
which is volume of cylinder by that of the coin
=approximately 15coins
which is volume of cylinder by that of the coin
=approximately 15coins
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