A rectangular sheet of paper $40 c m \times 44 c m$ is rolled to form a hollow cylinder of height 40 cm. Find the diameter of the cylinder.

7 cm

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10 cm

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14 cm

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15 cm

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Solution

The correct option is C
14 cm

Given: Height = 40 cm, Circumference = 44 cm

So, $2 π r$ = 44

$2 \times \frac{22}{7} \times r = 44$

r = 7 cm

Diameter = 2r = 14 cm

Diameter of the cylinder = 14 cm

Suggest Corrections

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