A cylinder of height 45 cm and diameter 4 cm is metted and recast into sphere of diameter 6 cm . Find the number of spheres.
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Step-by-step explanation:
let 'n' be the number of spheres that can be recast
Volume of cylinder Vc = Volume of one sphere Vs × number of spheres 'n'
therefore n = Vc / Vs
=> n = (π×2²×45)/(4/3 × π× 3³)
=> n = 3 × 4 × 45 / 4 × 27
=> n = 5
Volume of cylinder = πr²h and Volume of sphere = 4/3πr³
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