2007-03-14 07:43:57 · 5 answers · asked by me 2 in Education & Reference ➔ Other - Education
there a question on hear asking how many digits of Pi do you have memorized but i dont know what a pi is.
please help
2007-03-14 07:45:40 · update #1
http://www.gamefaqs.com/
2007-03-14 07:47:22 · update #2
By definition, pi is the ratio of the circumference of a circle to its diameter. Pi is always the same number, no matter which circle you use to compute it.
For the sake of usefulness people often need to approximate pi. For many purposes you can use 3.14159, which is really pretty good, but if you want a better approximation you can use a computer to get it. Here's pi to many more digits: 3.14159265358979323846.
The area of a circle is pi times the square of the length of the radius, or "pi r squared":
A = pi*r^2
(most people remember pi or refer to it as 3.14...)
2007-03-14 07:47:55 · answer #1 · answered by JustJen 5 · 1⤊ 0⤋
Pi is a mathematical constant that represents the ratio of the length of a circle's circumference to its diameter. It is approximately equal to 3.14159.
It is used in finding the area of a circle, too. You may remember the formula pi*r^2 from your geometry class.
2007-03-14 07:47:36 · answer #2 · answered by Ranto 7 · 1⤊ 0⤋
pi is 22/7 or u can say pi = 3.14159265
Explanation:
The ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846
2007-03-20 10:23:15 · answer #3 · answered by vicky 2 · 0⤊ 0⤋
Pi is the math constant that is used in several formulas. the number is almost infinite. I have only had to memorize it to two decimal places ..... 3.14. As stated earlier, it goes on and on and on 3.1415926535.....
2007-03-14 07:49:17 · answer #4 · answered by Beej 3 · 0⤊ 0⤋
Pi equals 3.14.
Therefore, if you have an equation such as:
3pi x 2 = ??
3 (3.14) x 2 = 9.42 x 2 = 18.84 Answer
2007-03-14 07:54:21 · answer #5 · answered by coolevenat2inthemorning 2 · 0⤊ 0⤋