3.14159
The 9 was just in-case
Here is the value of PI to 10 decimal places:
3.1415926536
For four decimal places keep in mind you want to round the 5 up, so 3.1416.
Answer+MoreTo the 18th decimal place pi is 3.141592653589793238
3.141592 is very close to 3.1416 so pi to the fourth decimal place is in fact, 3.1416.
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Pi has an infinite number of decimal places
the value of pi is 3.14159265358979323846264338327950288........ it goes on and on
Pi has no definite number of decimal places. It can (theoretically) be written to an infinite number of decimals.
3.1415926535...
3.141592653589793