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13 October, 17:22

Using the formula C=2TTr, find the circumference of a circle with a diameter of 28 in. round your answer to the nearest inch

A. 56in

B. 28 in

C. 44in

D. 88in

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Answers (2)
  1. 13 October, 19:24
    0
    radius = diameter/2

    so 28/2=14

    using 3.14 for PI

    2*3.14*14 = 87.92 = 88 inches
  2. 13 October, 19:40
    0
    Radius = diameter / 2

    so radius = 28/2 = 14

    Circumference = 2 x pi x 14 = 28 pi

    or from calculator = 87.96 inches ... correct to 2 decimal places
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Home » Mathematics » Using the formula C=2TTr, find the circumference of a circle with a diameter of 28 in. round your answer to the nearest inch A. 56in B. 28 in C. 44in D. 88in
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