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The surface area of a solid metallic sphere is 616 cm^2. It is melted and recast into a cone of height 28 cm.

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The surface area of a solid metallic sphere is 616 cm2. It is melted and recast into a cone of height 28 cm. Find the diameter of the base of the cone so formed (Use it =22/7)

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Given height of cone (h) = 28 cm 

Given surface area of Sphere = 616cm2

We know surface area of sphere = 4πr2

Let 1r be radius of cone

Given volume of cone = Volume of sphere

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