Question

If the height and curved surface area of a regular cylinder are 5cm and 440 cm? Then find its radius
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Answer 1

Given:-

• Height of a cylinder is 5 cm.
• C.S.A of a cylinder is 440 cm.

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To find:-

• Radius of a cylinder.

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Solution:-

Here,

• Height (h) = 5 cm
• C.S.A = 440 cm

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Let,

• the radius of a cylinder be r.

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According to the question

★Formula used:-

C.S.A. of cylinder = 2πrh

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→ 440 = 2 × 22/7 × r × 5

→ 440 = 10 × 22/7 × r

→ 440 × 7/22 × 10 = r

→ r = 14cm

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Hence,

• the radius of a cylinder is 14 cm.