The fraction 22/7 is close to PI for four significant digits.
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Pi is a number. You get pi when you divide the circumference of a circle by it's radius. 22/7=3.14 is the closest fraction.
e, √8, pi, √10
You may think Pi is infinity, which it is, it goes on and on. but there is a book with many of the number. It is a book that keeps going on with numbers of Pi. Here is some of it.3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461284756482337867831652712019091456485669234603486104543266482133936072602491412737245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094330572703657595919530921861173819326117931051185480744623799627495673518857527248912279381830119491Pi is a non-terminating, non-repeating decimal that goes on and on. However, the closest whole number to pi is still 3.
You divide circumference / (2 x pi).You divide circumference / (2 x pi).You divide circumference / (2 x pi).You divide circumference / (2 x pi).
To find pi you divide any circle's circumference by its diameter.