Question

if the radius of a cylinder is doubled and the height is halved then find the ratio of volume of original to the changed.

Answer 1

here is your answer

Answer 2

Hey!

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: CSA of cylinder =2πrh

: R of new=2r and Height of new=r/2

: CSA of new cylinder :-

=2π×2r×h/2

=2πrh

: Ratio of new cylinder and old cylinder :-

=2πrh/2πrh

=1 : 1 (One ratio one)

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Regards :)

Yash Raj ✌