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Q: What did people use pi for?

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people use pi to find the circumference of a circle.

3.14159265 That Pi? Many people use Pi. I use Pi in my math class.

The Hindus created PI

because of the simplicity of its definition

pi=3.1415926535897932384626433.....but most of the time people just use 3.14

Pi is a number that is never ending, but most people only use the first couple of digits. pi = 3.14159265 pi is the ratio of a circles' diameter to its circumference

the number is that you use for pi is 3.14 the number is that you use for pi is 3.14

there are 10 trillion decimals for pi (or even more) but most people use 3.14 or 3.1415 and personally i use 3.141592654 answer by Jopiesaus

You have to use pi bc the circle full length is 3.14 but that is a regular term people use to multiple without a calculator

Just divide 56 by pi. Pi is approximate 3.14; or use the "pi" key on your scientific calculator.Just divide 56 by pi. Pi is approximate 3.14; or use the "pi" key on your scientific calculator.Just divide 56 by pi. Pi is approximate 3.14; or use the "pi" key on your scientific calculator.Just divide 56 by pi. Pi is approximate 3.14; or use the "pi" key on your scientific calculator.

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

To find the diameter of a circle, you use pi to find the radius, because the middle of a circle is pi.

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