Pi (π)
Ratio of a circle’s circumference to its diameter (~3.14159).
Definition
Pi (π) is a mathematical constant representing the ratio of a circle's circumference to its diameter. It is irrational and infinite.
Example
Circumference of a circle with radius 1: C = 2π×1 ≈ 6.283
Calculation
Circumference=2 × π × radius (r)
Example: For a circle withradius = 1:
C = 2 × π × 1
C ≈ 6.283
C = 2 × π × 1
C ≈ 6.283