Systerms : system terms : π

A (41) | B (23) | C (62) | D (45) | E (33) | F (34) | G (18) | H (16) | I (28) | J (2) | K (5) | L (14) | M (29) | N (17) | O (10) | P (62) | Q (10) | R (41) | S (74) | T (31) | U (12) | V (12) | W (8) | X (1) | Y (2) | Z (2)

Pi is the fixed number you get when you divide a circle's circumference by its diameter, and this ratio is the same for any circle, no matter its size. Pi is the symbol for the ratio of a circle's circumference to its diameter, roughly equal to 3.1415926535.

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