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Happy Pi Twenty-Four Hr Menstruum :: 14Th March :: Π=3.141592653589793238462643338327950288419716939937....... :: Things To Know Close Pi

By July 15, 2019 Edit
Happy Pi Day
Dear Readers, Today is Pi Day. Its celebrated across the footing on 14th March every year. No exact value is in that place for this celebrated irrational number.
π =3.141592653589793238462643338327950288419716939937.......

Facts About Pi :
1. Pi is the ratio of circumference of the circle to diameter of the same circle. Pi = Circumference / Diameter= 3.1415926535897......

2. Pi is non equal to the ratio of whatsoever 2 integers, its approx value is taken i.e. 22/7=3.14159265..

3. 3.14.......... is the random value of Pi which has never proved.

4. 14th March 2018 is the 30th Anniversary of Pi.

History of Pi :
By criterion circular objects, it has ever turned out that a circle is a piffling to a greater extent than than iii times its width around. In the Old Testament of the Bible (1 Kings 7:23), a circular puddle is referred to every bit existence xxx cubits around, in addition to 10 cubits across. The mathematician Archimedes used polygons alongside many sides to justice circles in addition to determined that Pi was some 22/7. The symbol (Greek missive of the alphabet “π”) was outset used inwards 1706 past times William Jones. Influenza A virus subtype H5N1 ‘p’ was chosen for ‘perimeter’ of circles, in addition to the purpose of π became pop later it was adopted past times the Swiss mathematician Leonhard Euler inwards 1737. In recent years, Pi has been calculated to over i trillion digits past times its decimal. Only 39 digits past times the decimal are needed to accurately calculate the spherical book of our entire universe, but because of Pi’s interplanetary space & patternless nature, it’s a fun challenge to memorize, in addition to to computationally calculate to a greater extent than in addition to to a greater extent than digits.(Source: www.piday.org)

 Pi inwards Geometry :
The publish pi is extremely useful when solving geometry problems involving circles. Here are some examples:
The expanse of a circle:
Influenza A virus subtype H5N1 = πr2
Where ‘r’ is the radius (distance from the centre to the border of the circle). Also, this formula is the rootage of the joke “Pies aren’t square, they’re round!”
The book of a cylinder:
V = πr2h
To detect the book of a rectangular prism, you lot calculate length × width × height. In that case, length × width is the expanse of i side (the base), which is in addition to therefore multiplied past times the elevation of the prism. Similarly, to detect the book of a cylinder, you lot calculate the expanse of the base of operations (the expanse of the circle), in addition to therefore multiply that past times the elevation (h) of the cylinder.

 src= www.cnn.com & www.piday.org

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