3.142
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3.142
It is: 3.142 to 3 decimal places
The circumference of any circle divided by its diameter is always equal to pi which is about 3.142 rounded to 3 decimal places. The exact true value of pi is not known because the decimal places of pi are infinite.
Its area is: 4*pi*81 = 1017.876 square units to 3 decimal places Its volume is: 4/3*pi*729 = 3053.628 cubic units to 3 decimal places
It is 3.142 rounded to 3 decimal places