# What Is the Exact Value of Pi?

The exact value of pi is 3.14159. Pi refers to a mathematical constant which is the ratio of the circumference of a circle to its diameter. It is also a transcendental number which is irrational.
The value of pi to 5 decimal places is 3.14159. Pi is an irrational number, so it cannot be expressed as an exact fraction and its decimal representation has no end.
The Greek letter pi was first used to represent the ratio of the circumference of a circle to its diameter in 1709 by mathematician William Jones.
Q&A Related to "What Is the Exact Value of Pi"
 There is no exact value.. Pi can only be approximated! Here it is to 10,00 decimal places: Doubt you would need much more than that. pi= (approx) 3.14159 26535 89793 23846 26433 83279 http://wiki.answers.com/Q/What_is_the_exact_value_...
 Pi is an infinite number that never repeats or ends in zeros. The approximate value of http://www.chacha.com/question/what-is-the-exact-v...
 The value of pi has never been fully computed although it has been attempted by many scholars. In mathematical equations, the value of pi is represented by 3.14. http://answers.ask.com/Science/Mathematics/what_is...
 Pi is a transcendental number, not just an irrational one - which means that it is not the solution to any question involving powers. It is approximately 22/7 or (much better) 355 http://uk.answers.yahoo.com/question/index?qid=201...
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Pi is the ratio of the circumference of a circle to its diameter. It cannot be written exactly as a decimal because it is a transcendental number; it's irrational ...
Pi is the ratio of the circumference of a circle to its diameter. It cannot be written exactly as a decimal because it is a transcendental number; it's irrational ...
Pi is the ratio of the circumference of a circle to its diameter. It cannot be written exactly as a decimal because it is a transcendental number; it's irrational ...