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    Using π=227\pi = \frac{22}{7}π=722​​, find the circumference of a circle whose diameter is 38.5 cm .
    Question

    Using π=227\pi = \frac{22}{7}​, find the circumference of a circle whose diameter is 38.5 cm .

    A.

    165 cm

    B.

    121 cm

    C.

    154 cm

    D.

    170 cm

    Correct option is B

    Given:

    Diameter of the circle, d = 38.5 cm

    π = 227\frac{22}{7} ​​​

    Formula Used:

    The circumference of a circle is calculated using the formula:

    C = πd

    Solution:

    C = 227×38.5=8477\frac{22}{7} \times 38.5 = \frac{847}{7} = 121 cm

    Thus, the circumference is 121 cm.

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