The radius of the base of cone is 4.2 cm and its height is 10 cm. It is melted and recasted into a sphere. Find the radius of the sphere.
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As volume remains same
1/3. pie . 4.2× 4.2× 10 = 4/3 pie r^3
42×42×10/4 = r^3
4410 = r^3
1/3. pie . 4.2× 4.2× 10 = 4/3 pie r^3
42×42×10/4 = r^3
4410 = r^3
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