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9 April, 22:54

The circumference of a circle is 8.65cm. Find the length of the diameter. Give your answer rounded to 2 DP.

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Answers (2)
  1. 9 April, 23:06
    0
    d = 2.75 cm

    Step-by-step explanation:

    C = 2π·r } = > C = dπ = > d = C/π

    2r = d

    d = 8.65cm/3.14 ≈ 2.75 cm
  2. 9 April, 23:14
    0
    D = 2.75 cm

    Step-by-step explanation:

    D = C: π

    D = 8.65 : 3.14

    D = 2.754

    D = 2.75 cm
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