Question

the radii of two cylinder are in the ratio 3:2 and their heights are in the ratio 3:5 then the ratio of their curved surface areas is ​

Answer 1

Answer:

Let the radius of two cylinder are 3r and 2r respectively

Let the Height of two cylinder are 3h and 5h respectively

we know that Curved Surface area of cylinder is 2πrh square unit

so we can say that 2πrh : 2πrh

=2π3r3h : 2π2r5h

= 9:10 ans.