3.1415926535
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3.1415926535...
Pi is an irrational number and so its value cannot be expressed as a ratio of two integers nor as a terminating or recurring decimal. To 5 decimal places, it is 3.14159. Pi has been calculated to 10 trillion (and 50) decimal places.
10^-1
3.1415926536 is to 10 places but not exact. The only exact value of pi is pi itself. So any exact answer involving pi would include pi in the answer.
3.14159The 9 was just in-caseHere is the value of PI to 10 decimal places:3.1415926536For four decimal places keep in mind you want to round the 5 up, so 3.1416.Answer+MoreTo the 18th decimal place pi is 3.1415926535897932383.141592 is very close to 3.1416 so pi to the fourth decimal place is in fact, 3.1416.