If V and C stand respectively for volume and curved surface area of a cylinder with base find the ratio of their radius r, then:
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Given : V and C stand respectively for volume and curved surface area of a cylinder with base radius r
To Find : Correct option
(1) VC= πr
(2) 2V= Cr
(3) 2C= Vr
(4) 2r= VC
Solution:
Volume of cylinder = πr²h
=> V = πr²h
curved surface area of cylinder = 2πrh
=> C = 2πrh
V = πr²h
=> 2V = 2 πr²h
C = 2πrh
=> Cr = 2 πr²h
Hence 2V = Cr
2V= Cr is the correct option
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