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20 December, 10:11

What is the circumference of a circle with a diameter of 57 centimeters

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  1. 20 December, 10:18
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    C = 2πr or C = πd

    Diameter d = 57 cm

    C = πd

    C = π*57 = 57π

    C ≈ 57 * 3.14159 = 179.07063

    Exact circumference is 57π cm or

    ≈ 179.07 cm.
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