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4 June, 03:40

The radius of a circle is 2 kilometers. What is the area?

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Answers (2)
  1. 4 June, 04:09
    0
    A = 4 pi km ^2

    or approximately

    A = 12.56 km^2

    Step-by-step explanation:

    The area of a circle is given by

    A = pi r^2

    The radius is 2

    A = pi * 2^2

    A = 4 pi km ^2

    If we approximate pi as 3.14

    A = 4 * 3.14

    A = 12.56 km^2
  2. 4 June, 05:00
    0
    Answer:12.57km

    Step-by-step explanation:

    A=π·r^2=π·2^2≈12.56637

    or just radius squared multiplied by pi
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