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.
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3.1415926535...
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.
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.
Move 10 decimal places to the right to get: 7 x 10-10 The exponent is negative since the leading nonzero digit takes place 10 decimal places on the right of the decimal places