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No. Pi is a neverending number.
Pi = 355/113. That improper fraction is accurate to six decimal places. Pi is the ratio of a circle's circumference to its diameter. Please search on "Pi" using this site's search utility to find many questions that deal with it. Some links can be found below.
Pi is an irrational number, so when we're solving with pi, we usually round it to something like 3.14. If we use 3.14 as pi in this problem, we get 84.78.
3.14.....if you round it up...this is actually standard...pi actually goes on forever, but this is the standard number for pi.
circumference = 2 x pi x radius which is the same as pi x diameter so the answer is pi.