Math, asked by smahi2083, 1 year ago

a metal pipe is 77cm long. the inner diameter of a cross section is 4cm and thickness of metal is 2cm. find its (i)inner curved surface area, (ii)outer curved surface area

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Answered by nishchay74

2

This is question no.3 exercise 13.2
NCERT textbook,maths grade IX

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