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Volume of a Cylinder

An iron pilla...

Question

An iron pillar consists of a cylindrical portion 2.8 m high and 20 cm in diameter and a cone 42 cm high is surmounting it. Find the weight of the pillar, given that 1 cubic cm of iron weighs 7.5 gm.

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Solution

Volume of cylindrical portion

Volume of conical portion

Total number

So total height

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Volume of a Cylinder

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