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19 August, 02:33

Which is the area of a circle with a circumference of 15.7 units (use 3.14 for pie

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Answers (2)
  1. 19 August, 03:31
    0
    C=2pir

    15.7=2pir

    divide by 2

    7.85=pir

    divide both sidse by pi

    7.85/pi=r

    ok so

    area=pir^2

    area=pi (7.85/pi) ^2

    area=pi (61.6225 / (pi^2))

    area=61.6225/pi

    use 3.14 for pi

    area=61.6225/3.14

    area=19.625 square units
  2. 19 August, 04:33
    0
    The answer would be 19.625
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