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Lateral Surface Area of Cylinder

A rectangular...

Question

A rectangular sheet of paper 44 cm x 18 cm is rolled along its length and a cylinder is formed. The radius of the cylinder is

A

10 cm

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B

14 cm

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C

7 cm

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D

3.5 cm

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Solution

The correct option is C 7 cm
Circumference of the base = Length of the sheet
$\Rightarrow 2 π r = 44$
$\Rightarrow 2 \times \frac{22}{7} \times r \times 44 \Rightarrow r = 7 c m$

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