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Question:-A rectangular strip 25 cm × 7 cm is rotated about the longer side. Find the total surface area of the solid thus generated.Answer with full explanation!✔️No spam❌​

Answer»

ANSWER:

Height is 25 cm and radius is 7 cm

Volume= 22/7*25*7*7

=3850m3

Total surface AREA =2*22/7*r(h+r)

=2*22/7*7(25+7)

=44*32

=1408m2

Hope it helps!!!



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