Pi Day

Pi is approximately 314 but in reality it is greater than 314 with an infinite string of numbers after the decimal point. Heres a brief history of finding π.

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The number pi can also be observed all around us.

. Cylinder pi r2h where r is the radius and h is the height. Cone frac13pi r2h where r is the radius and h is the height. Because pi is in reality an infinitely long number it is expressed as the Greek letter pi π.

Sphere frac43pi r3 where r is the radius. Cube s2 where s is the length of the side. The ancient Babylonians calculated the area of a circle by taking 3 times the square of its radius which.

Rectangular prism ltimes wtimes h where l is the length w is the width and h is the height. Pi is a cool number with many unique properties. A Brief History of Pi π Pi π has been known for almost 4000 yearsbut even if we calculated the number of seconds in those 4000 years and calculated π to that number of places we would still only be approximating its actual value.

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