the number is that you use for pi is 3.14 the number is that you use for pi is 3.14
The circumference of a circle when divided by its diameter is the value of pi which is an irrational number that can't be expressed as an exact fraction.
While there is no fraction form for pi, 22/7 is an approximation of pi that can be used for a rough calculation .
Pi can be calculated to millions of decimal places and it has not come out even yet, so there is no apparent limit to the number of 1's that will appear in the calculation.
the Egyptians
3.141592654 rounded by the calculator
Because pi is an irrational number that has an infinite amount of digits
Because it's irrational. It goes on forever, the reason for this is that Pi is used to work out the circumference of a circle. Circles don't have sides, so you can't times one by another to get the Area. You have to use a number that goes on forever, because technically, a circle goes on forever. Mathematicians wanted a number to work out circles. And after much calculation, they finally discovered an irrational number, Pi. 3.142. It cannot be turned into a fraction.
pi did not use any professions! It was merely a number.
Pi is an irrational number, and is the circumference of the unit circle. It's a neat number to use in all sorts of circumstances.
Pi is the number you have to use to solve many circle equations. If you want to find the area of a circle, use radius squared times pi. For the circumference, use diameter times pi.
The ancient Babylonians used pi as a number approx 4000 years ago.