Math, asked by prathmesh88811, 4 months ago

A hallow metal cylinder pipe has a length 30cm and internal diameter 12cm and thickness 2cm.find its total surface area and the cost of polishing all its surface rs 3.15per cm cube.
1cm cube of the metal weights is 6.3g. find the weight of the pipe

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Answered by jay844463

0

Step-by-step explanation:

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