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How did ancient mathematicians discover pi? I have looked across several websites and none of them seem to give a straight answer. How did they calculate this irrational constant?

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marked as duplicate by Francois Ziegler, Community Oct 24 '18 at 3:33

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    $\begingroup$ Have you considered books rather than websites? Try Petr Beckmann's A History of $\pi$. $\endgroup$ – KCd Oct 24 '18 at 2:22

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