2007-09-22 17:33:17 · 12 answers · asked by wassem m 1 in Science & Mathematics ➔ Mathematics
π is defined as the ratio of a circle's circumference to its diameter:
When a circle's diameter is 1, its circumference is π.
2007-09-22 17:41:34 · answer #1 · answered by buddy19911988 2 · 1⤊ 0⤋
PI (the ratio of the circumference to the diameter of a circle) is only approximately equal to 22/7, and is in fact irrational, which means it cannot be expressed exactly in the form a/b, where a and b are integers. However, 22/7 is a sufficiently good approximation most of the time.
2007-09-23 02:07:39 · answer #2 · answered by Martin 5 · 0⤊ 1⤋
Of any size circle, It's a ratio of the Diameter of a circle to its Circumference.
e.g. if a circle has a radius of 1cm its Diameter is 2cm. Circumference is 3.142 x 2 = 6.284cm
Ï = Circumference ÷ Diameter
From the above example = 6.284 ÷ 2 = 3.142 = Ï
2007-09-23 00:58:14 · answer #3 · answered by Norrie 7 · 0⤊ 0⤋
The pi number is the ratio of circumference of a circle to its diameter. It has been determined that this ratio is 22/7 and no matter how large the diameter of a circle is selected the ratio of its circumference to diameter is constant at 22/7=3.14.......?
2007-09-23 00:51:15 · answer #4 · answered by bashah1939 4 · 0⤊ 1⤋
It's just the ratio of the circumference to the diameter of a
circle, regardless of how many places a computer can
write it out to
2007-09-23 00:41:52 · answer #5 · answered by jim m 5 · 0⤊ 0⤋
I believe that it is the relationship between the radius or diameter and the Circumference
C = 2 Pi r = Pi d
2007-09-23 00:39:34 · answer #6 · answered by Steve B 6 · 0⤊ 0⤋
pi is = to 22 divided by 7 which is the ratio of its circumference to its diameter it is the smallest circumference to have a whole number as a diameter or vice - versa, you could say that a 1 inch diameter would have a circumference of 3.1416 etc. inches
2007-09-23 00:48:53 · answer #7 · answered by Anonymous · 0⤊ 1⤋
Pi number 3.141592654 is an algebra constant most commonly used to measure area of circle. (Pi * radius * radius)
2007-09-23 00:40:20 · answer #8 · answered by Boogie0821 2 · 0⤊ 1⤋
OK pi is the Circumference/diameter
2007-09-23 00:56:11 · answer #9 · answered by Mr. Smith 5 · 1⤊ 0⤋
22 divided by 7 or divide the circumference of a circle by its diameter.
2007-09-23 00:39:57 · answer #10 · answered by worldneverchanges 7 · 0⤊ 1⤋