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A metal pipe of negligible thikness …

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A metal pipe of negligible thikness has radius 21cm and length 90cm find tg3 puter curved surface area of the pipe

Posted by Aarav Sharma 5 years, 4 months ago

Yogita Ingle 5 years, 4 months ago

curved surface area of the pipe =2(pi)(r)(h)

=2(22/7)(21)(90)

=22/7(21)(45)

=22(21)(45)

=2970

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