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    Question

    The inner radius of a cylindrical container is 3 cm. If the

    length of the container and the thickness of the container are 18 cm and 4 cm, respectively, find the volume of the container. (Use π = 22/7)
    A 1290 cm³ Correct Answer Incorrect Answer
    B 1850 cm³ Correct Answer Incorrect Answer
    C 1488 cm³ Correct Answer Incorrect Answer
    D 1650 cm³ Correct Answer Incorrect Answer

    Solution

    ATQ,

    Outer radius of the container = 3 + 4 = 7 cm

    Volume of the cylindrical container = π × height × [(outer radius)² - (inner radius)²]

    = (22/7) × 18 × (7² - 3²)

    = (22/7) × 18 × (49 - 9)

    = (22/7) × 18 × 40

    = 1,488 cm³

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