2007-03-10 15:57:11 · 6 answers · asked by Anonymous in Education & Reference ➔ Homework Help
Pi is the ratio of the diameter of a (perfect) circle to it's circumference: rounded to 50 decimal points it is equal to 3.14159 26535 89793 23846 26433 83279 50288 41971 69399 37510 but continues on forever (?).
2007-03-10 16:01:36 · answer #1 · answered by Anonymous · 2⤊ 0⤋
The mathematical constant Ï is an irrational real number, approximately equal to 3.14159, which is the ratio of a circle's circumference to its diameter in Euclidean geometry, and has many uses in mathematics, physics, and engineering. It is also known as Archimedes' constant (not to be confused with an Archimedes number) and as Ludolph's number.
In Euclidean plane geometry, Ï is defined either as the ratio of a circle's circumference to its diameter, or as the ratio of a circle's area to the area of a square whose side is the radius. The constant Ï may be defined in other ways that avoid the concepts of arc length and area, for example as twice the smallest positive x for which cos(x) = 0.The formulæ below illustrate other (equivalent) definitions.
http://en.wikipedia.org/wiki/Pi
2007-03-11 00:03:33 · answer #2 · answered by Joe Schmo from Kokomo 6 · 0⤊ 0⤋
Ï â 3.14159 26535 89793 23846 26433 83279 50288
2007-03-11 00:01:59 · answer #3 · answered by greβ 6 · 0⤊ 0⤋
it is equals to 3.14
2007-03-11 11:17:47 · answer #4 · answered by maureen ava 2 · 0⤊ 0⤋
3.14
2007-03-11 00:04:54 · answer #5 · answered by support our troops 2 · 0⤊ 0⤋
3.14
2007-03-11 00:01:00 · answer #6 · answered by Anonymous · 0⤊ 0⤋