# classify if square root of 23 rational or irrational if it is irrational so by which number we can divide it to show it is irrational

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We know Pi(π) is an irrational number but we use π = 22/7 or 3.14 for numerical questions like to find area of any circle. The value of Pi to 100 decimals is 3.1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 3421170679 and so on.

The value of 22/7 is 3.14285731428573142857… We saw that its decimals repeats after every 6 decimals. So, it is a non terminating recurring decimal so it is a rational number.

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