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A cylindrical road-roller made of iron i...

A cylindrical road-roller made of iron is 1 m long. Its internal diameter is 54 cm and the thikcness of the iron sheet used in making the rolleris 9cm. Find the mass of the roller, if 1 `cm^3` iron has 7.8 g mass. (Use `pi` = 3.14)

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MBD-Surface Areas And Volumes -Excercise
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