Everyone needs Pi.
You should know pi because of math. You need pi when you are dealing with circles. The only thing you really need to know about pi is 3.14 though.
If you are wanting to become a PI you will need to obtain a PI license. To do that you will need to have a licensed PI sponsor you and then take your PI test. If you pass that, you will get your license. Good Luck.
You need Pi to find the radius or circumference of a circle and there are many more uses!
You only need one decimal in pi (3.14). Pie goes on forever, if that's what you're asking.
C = 2 * (pi) * (radius) So plug in 2 for radius C = 2 * (pi) * (2) C= 4(pi) If you need to approximate multiply 4 times 3.14. If you do not need to approximate then your answer is 4(pi)
previous experience as a hooker
So that you can find the circumference of a circle.
You need the formula circumference = pi x diameter pi = 3.14.. This is by the way the definition of the special number pi.
In finding out how much pie you have, you would use pi. After calculating pi to the 500th decimal place, you will need a slice of pie.
Circumference = 2*pi*radius or diameter*pi
Pi has over two billion digits but you can use 3.14 or if you need a fraction 22/7