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3 August, 18:22

What is 2 times pi times r?

pi is 3.14 or 22/7.

What is r?

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Answers (2)
  1. 3 August, 19:42
    0
    R is the radius of the circle
  2. 3 August, 21:11
    0
    "2 times pi times r", which can be written as "2*pi*r", represents the circumference of a circle. This is the distance around the circle (aka perimeter)

    r is the radius of the circle

    if you know the diameter then you can divide the diameter in half to get the radius (example: diameter is 10 so the radius is 5)
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