The solid right circular cone of radius 4cm and height 7 cm is melted to form a sphere . find the radius of sphere
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vol. of cone = vol. of sphere
1/3*pi*r^2*h = 4/3*pi*R^3
so R^3 = 28 cm
1/3*pi*r^2*h = 4/3*pi*R^3
so R^3 = 28 cm
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2
volume of cylinder = volume of sphere
πr^2h =4/3πr^3
πr^2h =4/3πr^3
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