2007-03-28 15:47:18 · 17 answers · asked by Charlie J 1 in Science & Mathematics ➔ Astronomy & Space
It is the ratio between the circumference of a circle and the diameter.
so pi = cirumference/diameter
the value is 3.14159 roughly. So the circumference of any circle divided by the diameter of that circle is always pi. Its an infinite number, meaning you can calculate to an infinite number of decimal places without an answer.
It has been calculated out to 1.2 trillion digits as of 2002, it might have been done to more now.
hope this helps.
2007-03-28 16:02:21 · answer #1 · answered by Beach_Bum 4 · 0⤊ 0⤋
pi is the ratio between the circles circumference (distance around) and its diameter (distance across). It is found by Circumference/Diameter. It is 3.141592653589732384626433832795028841971693993751. This is not all of pi because pi is an irrational number, meaning that it goes on infinitely without repeating.
Demonsthenes
2007-03-28 23:33:28 · answer #2 · answered by Demonsthenes 2 · 1⤊ 1⤋
"Pi" repeats itself a lot in different things which gives it different definitions. First things first.
- Pi is the sixteenth letter in the greek dictionary
- Pi is the ratio of the circumference to the diameter of any and all circles.
- Pi is an antiviral drug that interrupts the effects of HIV
- Pi is the title of the lead scientist in research studies
2007-03-29 00:21:47 · answer #3 · answered by Anonymous · 1⤊ 1⤋
pi is the relationship between the diameter of a circle and its circumference. it is an irrational #, so 3.14 and 22/7 are only approximations (an irrational # is a # that goes on forever after the decimal point and is not repetitive.
heres some of the first digits:
3.14159265358979323846264338327950288419716939937
5105820974944592307816406286
2007-03-28 23:20:45 · answer #4 · answered by destructobuu 1 · 0⤊ 1⤋
"pi" is the mathematical relationship comparing the circumference of a circle with the diameter. Take the circumference of any circle and divide it by the diameter of the same circle. pi is usually represented by the number 3.1416.
2007-03-28 22:58:22 · answer #5 · answered by Stratman 4 · 1⤊ 0⤋
Pi is a number that represents the ratio of circle s circumference to its diameter on a flat plane surface. It is always 3.14159
2007-03-28 22:56:17 · answer #6 · answered by gehrig_fan 2 · 2⤊ 0⤋
Pi is the number 3.14
It goes on infinitely, though -- it does not end there.
Wikipedia has a wonderful illustration of Pi. The definition is this. When a circle's diameter (distance across) is 1, it's circumference (perimeter) is 3.14, or Pi.
http://en.wikipedia.org/wiki/Image:Pi-unrolled-720.gif
2007-03-28 22:57:43 · answer #7 · answered by cve5190 4 · 0⤊ 2⤋
It is a number used in math and is the ratio between the cercunfrence of a circle to it's dimater. The value is about 3.141592653589793238
2007-03-29 01:16:31 · answer #8 · answered by Mr. Smith 5 · 0⤊ 1⤋
pi is the ratio of a circle's circumference to its diameter.
pi's value is 3.14159265.
2007-03-28 22:56:49 · answer #9 · answered by rooster1981 4 · 3⤊ 0⤋
numerical value of the ratio of the circumference of a circle to its diameter. the numbers will approximately add up to 3.14159!
2007-03-28 22:56:25 · answer #10 · answered by Runner. 3 · 1⤊ 1⤋