How do you do pie for math?

Updated: 9/19/2023
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12y ago

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Mathematical pie is spelled pi and is the ratio of a circle's circumference (its perimeter) compared to its diameter (a line straight across the circle dividing it in half). Pi is an irrational number that continues on forever and is the same for every circle. Pi is used in mathematics to find the area and circumference of circles as well as the surface area and volume of spheres and cylinders. Pi is represented mathematically as π. Pi may go on forever, but it is usually rounded to be 3.14 so that it is easier to work with in equations.

Here are some of the digits of Pi:

3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679 8214808651328230664709384460955058223172535940812848111745028410270193852110555964462294895493038196 4428810975665933446128475648233786783165271201909145648566923460348610454326648213393607260249141273 724587006606315588174881520920962829254091715364367892590360011330530548820466521384146951941511609

It can also easily be approximated with the rational number 22/7.

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Q: How do you do pie for math?
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