Why we discovered pi in maths as we know that it's value is 3.14............. Instead we can have any other value of it like 6 or 91 It would make easy. And why there are too much digit because we only use 3.14

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Solution

The value of pi is found through certain experiments and that is a constant in entire mathematics calcultions. We use pi to calculate area of circles and so on. That is a world wide accepted constant. We cant change value of pi. The actual value of pi is sobig like 3.14159265358... and so on. For simplicitywe take 3.14 as the value of pi

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