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Irrational Numbers

Why is pi irrational and 3.14 is rational?


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Answered 2010-10-28 17:12:00

pi is an irrational number because it cannot be expressed as a ratio of two integers. In fact, it is a transcendental number, but that is not relevant here.

3.14 is a rational approximation to pi. It is not equal to pi.

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