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The ratio between the c.s.a and …

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The ratio between the c.s.a and t.s.a. of a right circular cylinder is 1:2.Find the ratio between height and radius of cylinder

Posted by Jaswantpangala Jaswantpangala 8 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Suman Chouhan 8 years, 2 months ago

Curved surface area/total surface area of cylinder =1/2 2pie rh/2pie r (r+h) Cancel them Now left is H/r+h=1/2 Now cross multiply 2h=r+h 2h-h=r H=r R/H 1:1

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