"Not as a decimal or fraction as there are an infinite number of digits."
This is a common and useful answer.
The *correct* answer is that PI is firstly an irrational number that cannot be calculated from any ratio (fraction).
Secondly, PI is a transcendental number that, by the definition of "transcendental", cannot be exactly calculated.
The nest you can do is to apply an infinite convergent series that becomes more and more accurate with more and more decimal places.
No one has ever found the exact value of pi because it is an irrational number that can't be expressed as a fraction and its value has been calculated to more than two trillion digits yet still not found exactly.
aryabhata
Lots of people did this; the accuracy increased over time.
tan(pi/3)= sqrt(3)
Suppose you want to calculate the area of a circle with a radius of 10 cm.If you use pi = 3.14 the area will be calculated as 314 cm^2if, instead, you use pi = 3.145159, the area will be 314.5159 cm^2if you use pi, as used by Excel on my computer, you will get 314.159265358979 cm^2.If you use the most accurate value of pi (currently around 10 trillion digits) you will get a more accurate value of the area.The difference between the calculated value and the true value is the truncation value.
No, because pi has no exact value, it is neverending. You can get close by using 3.14, but never will you get it exactly right. Up to date, about 4 trillion digits have been calculated.
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.
22 divided by 7 * * * * * That is an APPROXIMATE value of pi. The exact value cannot be calculated since pi is a transcendental number - a special kind of irrational number. It has an infinite decimal representation with no recurring pattern. That would be true in any base - binary, octal, or another base (other than pi itself, or a power of pi).
Yes, you could if you knew the exact value for pi as well as the diameter of the circle. Multiply the diameter by the exact value for pi to get the circumference. However, it is impossible because the exact value for pi is not known. It is only known to about a trillion decimal places, but the exact value is not known.
Archimedes
The Egyptians calculated pi to be 3.16.
The circumference of any circle when divided by its diameter has the exact value of pi
aryabhatta.
3.1428
If the value of pi is the circumference of any circle divided by its diameter then what is the true exact value of pi? Why is it that the exact area of a circle can never be found?
They gave it a value of about 3 but even today we do not know the exact value of pi
No one has ever found the exact value of pi because it is an irrational number that can't be expressed as a fraction and its value has been calculated to more than two trillion digits yet still not found exactly.