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Conical drill is used to drill a hole through the middle of a sphere, that has...

Conical drill is used to drill a hole through the middle of a sphere, that has a 10 cm radius. After the drilling there has appeared a conical tunnel through the sphere, where one difference has 6 cm diameter and the other difference has 8 cm diameter. Find the volume of this punched sphere.

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question is geometrical shape sphere and conical tunnel......

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