The radii of two circular cylinders are in the ratio 2 : 3 and their heights are in the ratio 5 : 3 . find the ratio of their curved surface area .
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Answered by
1
Step-by-step explanation:
We have,
r
2
r
1
=
3
2
h
2
h
1
=
3
5
We know that the volume of the cylinder
=πr
2
h
So, the ratio of the volume of cylinders
=
πr
2
2
h
2
πr
1
2
h
1
=(
3
2
)
2
×
3
5
=(
9
4
)×
3
5
=
27
20
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Hence, this is the answer.
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