The decimal expansion of the irrational number π begins 3.141592653589793 …. Use your calc...

The decimal expansion of the irrational number π begins 3.141592653589793 …. Use your calculator to determine which of the following rational numbers is the best approximation for the irrational number π:

Your calculator may tell you that some of these numbers are equal to π, but that just indicates that the number agrees with π for as many decimal places as your calculator can handle (usually 10–14). No rational number is exactly equal to π.