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'pi' is an IRRATIONAL number. This means that its decimal digits go to infinity and the digits are not in any regulr order.

Super Duper Computers have calculated 'pi' to more than 50 billion places, and stil going.

However, for school work , pi is 3.14, 3.1416, 22/7 These are only approximate values.

'pi' has been known from pre-Classical history .

It was found that the circulaference of a circle was always directly proportional to its diameter.

The Constant of PROPORTION is 'pi'.

'pi' is the Classical Greek samll /lower case letter 'p' and stands for propotion.

The circle equations you should learn in school are ;-

C = pi d ( circumference and diamter)

C = 2 pi r (circumference and radius)

A = pi r^(2). ( Area and radius squared).

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lenpollock

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Pi is the circumference divided by the diameter of any circle.

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Wiki User

14y ago
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