Question

what are the values of pie(include many values)

Answer 1

hope u mean pi(π)
π=circumference / diameter
π is an irrational non-terminating number.it value has about one million digits after decimal.but we use only 2 digits for easy calculations
 π=3.141592653589793238........

Answer 2

π is an irrational number.

It can be approximated as 
i) 3.142 (upto three decimal places)
ii) 22/7