Question

    Find the length of a wire radius 0.40 cm which can

    completely cover the surface of a cylinder whose height is 1.6m and base radius 21 cm?
    A 211.20 m Correct Answer Incorrect Answer
    B 528 m Correct Answer Incorrect Answer
    C 277.2 m Correct Answer Incorrect Answer
    D 264 m Correct Answer Incorrect Answer

    Solution

    wire cover the surface is equal to its diameter. 160/0.8 = 200 rounds Length of wire = 2 ×22/7× 21 × 200 = 264 m

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