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3 August, 18:38

Johnny ran 20 laps around a circular field. If he covered a distance of 3265.6 metres, what is the radius of the circular field?

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Answers (2)
  1. 3 August, 18:46
    0
    25.99 metres

    Step-by-step explanation:

    2πr is the circumference equation for the distance of one lap. Multiply that by 20 to get the distance of the laps in total. Then, simplify with r (radius) as the variable to solve for.

    20 (2πr) = 3265.6

    2πr = 163.28

    r ≈ 25.986819108
  2. 3 August, 19:16
    0
    60?

    Step-by-step explanation:

    2πr = 163.28

    20 (2πr) = 3265.6

    r ≈ 60.927382
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