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24 August, 09:39

What is the area of a circle with a diameter of 4

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Answers (2)
  1. 24 August, 11:33
    0
    Answer: Area = 12.57.

    Step-by-step explanation:

    The area of a circle is pi * radius^2.

    the diameter / 2 = radius.

    4/2=2 (2 is radius)

    The radius should be 2. You put that into the area formula which is A=pi (2) ^2.

    The area should be 12.57 and that is the final answer.
  2. 24 August, 13:01
    0
    The area of a circle is pi * radius^2.

    Diameter / 2 = radius.

    4 / 2 = 2

    The radius is 2. Plug this value into the area formula.

    A = pi (2) ^2

    Area = 12.57
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