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Question

Find the CSA of a cylindrical container of depth 20 m and radius 0.7 m.


A

22 m2

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B

44 m2

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C

88 m2

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D

11 m2

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Solution

The correct option is C

88 m2


We know that,
Curved surface area (CSA) of the cylindrical vessel = 2πrh.

Now,
CSA = π ×​ 2 ×(710) × 20
CSA = 227 ×​ 2 ×710 ×​ 20
CSA = 88 m2


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