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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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Q: Why is pi considered as an irrational number?
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Related questions

Why PI is considered to be Irrational?

Pi is an irrational number because as a decimal number it is infinite which means it has no terminating ending


Why is Pi considered infinite?

Because pi is an irrational number that can't be expressed accurately as a fraction


Is the circumference of a circle considered to be a whole number?

No because the circumference of a circle is pi times diameter and pi is an irrational number


Is pi a rational number?

Pi as relating to a circle is an irrational number because it can't be expressed as a fraction. It is a real number but it is not rational.No.Pi is considered an Irrational number because its decimals do not repeat or terminate, which are the requirements for a number to be rational (in addition to other things)


Is 2 pi a rational number?

No, since Pi is an irrational number, 2(pi) would still be irrational.


Is negative pi rational or irrational?

-Pi is irrational, because it does not terminate or repeat. Whenever you multiply an irrational number by a rational number (-1), the result is an irrational number.


Is pi a recurring decimal a terminating decimal or an irrational number?

Pi is an irrational number


What is pi an irrational number?

Yes, it is an irrational number.


Is pi plus pi a rational or irrational number?

It is irrational, just like pi


Why is 10 pi irrational?

A non-zero rational number (10) multiplied by an irrational number (pi) is always irrational.


Why is PI a rational or irrational number?

pi is an irrational number. It is irrational because it cannot be expressed as a ratio of two integers.


Is the square of pi a rational or irrational nuymber?

The square of pi is an irrational number.