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If the lateral surface area of a cylinder is 94.2 sq cm and its height is 5 cm, then find the radius of its base. (π = 3.14)?

5 cm
8 cm
3 cm
4 cm

Correct Answer: 3 cm

Explanation:

Given, lateral surface area = 94.2 sq cm
⇒ 2πrh = 94.2
∴ r = 94.2/(2πh) = 94.2/(2 x 3.14 x 5) = 3 cm

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