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9 October, 20:26

What is the approximate circumference of a circle with a radius of 20 inches? Use π ≈ 3.14.

A.

125.6 inches

B.

62.8 inches

C.

251.2 inches

D.

120 inches

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Answers (2)
  1. 9 October, 20:29
    0
    C = (2) (pi) (r)

    So in this case, the circumference is 125.6 inches
  2. 9 October, 20:52
    0
    circumference = 2PIr

    20*2*3.14 = 40*3.14 = 125.6

    The answer is A. 125.6
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