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8 February, 03:29

A circle with circumference 20 has an arc with a 72º central angle.

What is the length of the arc?

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Answers (1)
  1. 8 February, 04:00
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    l = x · c / 360

    l = 72 · 20 / 360

    l = 1440 / 360

    l = 4

    Step-by-step explanation:

    1. write down the arc length formula.

    2. replace x and c by their values

    3. multiply and then divide to get l
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