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6 August, 11:20

The radius of a circle is 9 millimeters. What is the circle's circumference?

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Answers (2)
  1. 6 August, 11:27
    0
    56.6mm

    Step-by-step explanation:

    Take the radius and double it to get the diameter

    9mm * 2 = 18mm

    Multiply the diameter by pi to get the circumference of the circle

    18mm * 3.1415 = 56.547mm
  2. 6 August, 11:42
    0
    Step-by-step explanation:

    56.52

    C=2 * 3.14 * radius
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