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what is the true meaning and exact value of pi?

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    http://en.wikipedia.org/wiki/Pi

  • math -

    pi cannot be expressed "exactly" as either a fraction or a decimal.
    It is an irrational number.
    If you take the circumference of a circle and divide it by the diameter, you get the value of pi.

    the value of pi correct to 7 decimal places is 3.1415926

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