Find the number of coins 2cm in diameter and 0.5m hick to melted to form a right circular cylinder of height 10cm and radius 3.5cm
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Step-by-step explanation:
The volume of a coin = π × radius2 × height = π × 12 × 0.5 = 0.5π cm3. The volume of the cylinder = π × radius2 × height = π × 52 × 6 = 150π cm3. ∴ required numbers of coins = 150π/0.5π = 300.
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