Find the weight of a lead pipe 3.5m long...

Find the weight of a lead pipe 3.5m long, if the external diameter of the pipe is 2.4cm and the thickness of the lead is 2mm and 1 cubic cm of lead weighs 11gm.

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Volume of lead`=pi*1.2*1.2*3.5-pixx1xx1xx35`
Volume`=pi(1.44xx3.5-3.5)`
`=4.84cm^3`
1 `cm^3` lead weight=11gm
4.84 `cm^3` lead weight`=11xx4.84`
`=532.4kg`.

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