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    Question

    A rectangle with a length of 16 cm and breadth of 8 cm

    is rolled through its length to form a hollow cylinder. What will be the volume (in cm³) of the cylinder? (Use π = 3.14)
    A 143.28 cm³ Correct Answer Incorrect Answer
    B 172.28 cm³ Correct Answer Incorrect Answer
    C 163.28 cm³ Correct Answer Incorrect Answer
    D None of these Correct Answer Incorrect Answer

    Solution

    ATQ, The circumference of the circular end of the cylinder = breadth of the rectangle. So, 2 × π × radius = 16. 2 × 3.14 × radius =16 Now, the height of the cylinder = breadth of the rectangle = 8 cm. Required volume 

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