Question

The radii of two cyclinder are in the ratio 3:4 and their are in the ratio 5:3.find the ratio of their curved surface areas.​

Answer 1

Answer:

5:4

Step-by-step explanation:

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Answer 2

Answer:

Given :

Radii of two cylinders are in the ratio 3:5 and there hight in the ratio of 5:3.

r1 = 3. h1 = 5

r2 = 4 h2 = 3

Ratio of their CSA = (CSA of cylinder1)/(CSA of cylinder2)

Ratio of their CSA = (2πr1h1)/(2πr2h2)

Ratio of their CSA = (r1h1)/(r2h2)

Ratio of their CSA = (3×5)/(4×3)

Ratio of their CSA = 5/4

Therefore, the ratio of their CSA are 5:4