Johann Heinrich Lambert proved, in the 18th Century that pi is irrational. However, his proof is pretty complicated. Simpler proofs were found later but even they are not simple and, in any case, well beyond the scope of the pathetic browser that we are obliged to use for posting answers. If you are really interested you can try the following link: en.wikipedia.org/wiki/Proof_that_π_is_irrational#Hermite.27s_proof
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Pi is an irrational number because as a decimal number it is infinite which means it has no terminating ending
Pi is an irrational number
pi is an irrational number. It is irrational because it cannot be expressed as a ratio of two integers.
The square of pi is an irrational number.
Well, (pi) x (1/pi) = 1 .