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30 June, 13:39

A circle has a circumference of 7. What is its radius?

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Answers (2)
  1. 30 June, 13:43
    0
    C = 2 (pi) r

    7 = 2 (pi) r

    r = 7 / (2pi) = 1.11408460164
  2. 30 June, 14:09
    0
    The radius is 1.11

    C

    2π=7

    2·π≈1.11408
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