Lets say that "d" is diametr of a circly,and C is the perimetr(length).(adsbygoogle = window.adsbygoogle || []).push({});

Why C/d = pi (3.14) is a constant?? I know the proof of archimides with poligons,from which found the value of pi,but how we know that C/d is always equal with a constant that we named as π=3.14;

Thanks !!!

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# C/d as constant

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