Three solid spheres of iron whose diameters are 2cm 12cm and 16cm respectively are melted into a single solid sphere.find the radius of solid sphere
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4/3πR³=4/3π(1+216+512)
=>R³=729
=>R³=9³
=>R=9
radius is 9cm
=>R³=729
=>R³=9³
=>R=9
radius is 9cm
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