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Question

The volume of a right circular cylinder is 1100 cm3 and the radius of its base is 5 cm. The area of its curved surface is

A
(440+25π)cm2
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B
(440+50π)cm2
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C
440cm2
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D
None of these
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Solution

The correct option is C 440cm2
Volume of a cylinder=2×π×r×h
1100=227×52×h {volume=1100cm3isgiven}

h=14cm

C.S.A=2×227×5×14
C.S.A=440cm2

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