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17 January, 20:29

Item: Circle D has a radius of 16 inches and right central angle, _EDF. Find the exact length of EF.

8 pi inches

4 pi inches

16 pi inches

32 pi inches

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Answers (1)
  1. 18 January, 00:19
    0
    Formula:

    C = 2 r π

    Step 1: plug the given radius into the formula

    C = 2 (16) π

    Step 2: multiply them and you should get

    C = 32 π

    Step 3: then you will want to divide the circumference by 4

    360/90 = 4

    32 π / 4 = 8 π

    Answer: 8 π inches
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