it can't be expressed as a fraction. the numbers after the decimal go on and on without end. No fraction can be divided to equal pi, therefore, it's irrational.
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It was known from ancient times that pi is irrational. However, that fact was proven in 1761 by the Swiss scientist Johann Heinrich Lambert.
rational because you can simplify the square root to 3 which is the quotient. Pi is probably the most well known irrational number out there. Improved Answer:- Pi is an irrational number because like all irrational numbers they can't be expressed as fractions.
NO!!!! Any terminating decimal is NOT irrational. '3.3' is a terminating decimal. NB An IRRATIONAL number is one in which the decimals go to infinity AND the digits are not in any regular order. 'pi' is the most well known irrational number. pi =~= 3.141592....
The square of pi is an irrational number.
Pi is an irrational number