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A hollow sphere of internal and exter...

A hollow sphere of internal and external diameters 4 cm and 8 cm respectively is melted into a cone of base diameter 8 cm. Calculate the height of the cone.

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The correct Answer is:
`14 cm`
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RS AGGARWAL-VOLUME AND SURFACE AREAS OF SOLIDS-Exercise 17D
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  16. If the radii of the circular ends of a bucket 28 cm high, are 28 cm an...

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  17. A bucket is in form of a frustum of a cone with a copacity of 12308.8 ...

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  19. A solid metallic sphere of diameter 28 cm is melted and recast into...

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