coins of same size are piled up one above the other forms a cylindrical block of volume 67.76 cm cube how many coins are present in the pile if each coin thickness is 2mm and radius is 1.4 cm
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Answer:
55 coins
Step-by-step explanation:
volume of coin= πr²h
vol= π*(1.4²)*0.2
=1.23150432
total coins = 67.76 /1.23150432
=55 coins
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