Question

In a cylinder, If the radius is doubled and height is halved,then the curved surface area of the new cylinder will be ______ of the curved surface area of the earlier cylinder.


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Answer 1

Step-by-step explanation:

Curved surface area of earlier cylinder = 2πrh

Curved surface area of new cylinder = 2*π*2r*h/2

= 2πrh

Curved surface area of new cylinder will be equal to the curved surface area of earlier cylinder.

Answer 2

Answer:

1 Answer. Now, radius is doubled and height is halved. New C.S.A. = 2π × 2r × h / 2 = 2πrh .