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    Question

    A rectangular paper of width 8cm and length 22cm rolled

    along it width and a cylinder is formed. On the above Intimation, Solve the question given below The radius of the cylinder is-
    A 2/7 cm Correct Answer Incorrect Answer
    B 7 cm Correct Answer Incorrect Answer
    C 7/2 cm Correct Answer Incorrect Answer
    D 14 cm Correct Answer Incorrect Answer

    Solution

    Rectangular width =8cm, length =22cm After rolled cylinder form – H=8cm and Circumference =22cm ATQ- 2 πr=22cm 2×22/7×r=22 r=7/2cm.

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