Why do they call it pi?

Answer 1

write down the words P1.E

if you write them correctly it looks like 3.14 but backwards lol

but honestly the word pi is from the greek alphabet. the symbol from the greek alphabet is used in many word problems involving circles. they found this number called 3.1459.... with decimals that go on forever and they needed something to define it. they picked a greek letter from the greek alphabet and call it this.

this is common because in physics many greek letters are used to represent things.

greek letters like omega,epsilon,zetta,kappa,gamma,beta,alpha,rho.. and many more