a cone is 8.4cm high and the radius of its base is 2.1cm it is meltedand recast into a sphere find the radius of sphere
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volume of cone = 1/3πr²h
= 1/3 × 22/7 × 2.1 × 2.1 × 8.4
= 38.808 cm³
cone is melted and recast into a sphere
so , volume of sphere = volume of cone
4/3πr³ = 38.808
r³ = 9.261
r = 2.1 cm
= 1/3 × 22/7 × 2.1 × 2.1 × 8.4
= 38.808 cm³
cone is melted and recast into a sphere
so , volume of sphere = volume of cone
4/3πr³ = 38.808
r³ = 9.261
r = 2.1 cm
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