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16 August, 02:28

The circumference of a circle is 31.4 inches. What is the circle's diameter? C=31.4 in Use 3.14 for .

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  1. 16 August, 04:17
    0
    49.3

    this can be calc for a form
  2. 16 August, 04:19
    0
    We will use the circumference formula to find the radius and then multiply it by 2 to find the diameter.

    C = 2πr

    31.4 = (2) (3.14) (r)

    31.4 = 6.28r

    5 = r

    So our radius is 5 in.

    We can multiply it by 2 to get the diameter.

    5*2 = 10

    So the diameter is 10 inches
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