Pi is a real, irrational number. When a numerical value is needed, it is approximated by a rational number such as 22/7, 3.1416, 355/133, or some other value.
Is The Number Pi A Real And Rational Number?
Irrational Number :-)
Rational number
Pi is an irrational number because it never terminates or repeats.
Irrational
Since Pi cannot be expressed as ratio of two numbers, it is not a rational number.