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Since pi is the ratio of the circumference of any circle to its diameter, it comes up any time a radius or diameter is used to calculate most other characteristics of a circle or a sphere, such as circumference, area, surface area or volume, or whenever any of those characteristics are used to calculate a radius or diameter.

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Q: What do people use pi for?
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Related questions

Why do people use Pi?

people use pi to find the circumference of a circle.


Who were the first people to use pi?

The Hindus created PI


Who uses Pi?

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


Why did people use pi?

because of the simplicity of its definition


What does Pi mean in mathermathics?

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


What is the exact amount of pi?

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


Why do you sometimes need to use pi when solving problems in math?

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


What is the number that you use to find pi?

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


What is the diameter if the circumferance is 56 inches?

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.


Whats pi equal to?

Pi is a mathematical constant that is approximately equal to 3.14159. It is the ratio of a circle's circumference to its diameter.


How do you explain pi in geometry?

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


Where did Pi get this name from in the Life of Pi?

people made fun of his name his real name is Piscine Molitor Patel. but instead the next year her decided to use the first 2 letters which is "Pi"