Answer:
Step-by-step explanation:
A irrational number is a number that goes on forever, basically it can't be put into a fraction.
Pi is one such number, its the ratio of the circles diameter to circumference.
It doesn't have a exact value and goes on forever, although most people just say pi is 3.14 or 22/7 these numbers are just approximations. In reality PI is a infinite number, and when you try calculating it you will keep finding that it keeps going on.