A cone is 12m high and the radius of its base is 3 cm .It is melted and recast into a sphere .Find the radius of the sphere.
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ok use the formula then find volume so u will get the volume of sphere and then do vice versa
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Volume of cone = volume of sphere
1/3 πr^2h. = 4/3 πr^3
1/3 x3x3x12. = 4/3 r^3. (π will get cancelled)
36x3/4. =r^3
r^3=27
Therefore r=9
1/3 πr^2h. = 4/3 πr^3
1/3 x3x3x12. = 4/3 r^3. (π will get cancelled)
36x3/4. =r^3
r^3=27
Therefore r=9
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