Question

Why the value of π(pie)is 22/7?

Answer 1

actually pi is only the ratio.
and it is approximately value found by mathematicians by many experiments.

#suggestion-
see these are mathematical things. instead of thinking that why is it like this,think that how it has been found.
and go on asking yourself good questions and you are gonna become a very good thinker.
and be practical but go with theoretical too.
because if we only focus on practical by saying that something is only possible in a theoretical way, we won't be able to invent anything

Answer 2

Listen friend pie π is undefined.  So mathematicians have considered a value of 22/7 which is somehow very near to the value of pie. We use pic as 22/7 because it gives us a very approx value that is 3.14.