Pi

Pi (π), mathematics ke ek constant hae, jon ki ek ghera (circle) ke circumference aur diameter ke ratio hae. Isse jon number nikle hae uu sab time ekke rahe hae, iske pi bola jjae hae aur iske value 3.141592653589793.... jon ki khalaas nai hoe hae. Ii rakam ke number ke irrational numbers bola jaae hae.

alt=Ek circle ke chhaapa, jisme chaurrai ke diameter label karaa gais hae, aur perimeter ke circumference label karaa gais hae|thumb|right|200px|Ek circle ke circumference uske diameter se tiin se thorraa jaada guna hae. Iske sachchaa ratio ke "pi" bola jaae hae.
 ke ek circle ke circumference  aur iske diameter  ke ratio define karaa jaae hae:, English translation by Catriona and David Lischka

References

vibhag:P
vibhag:Geometry