Perpendicular Bisector of Chord Passes Through Center/Historical Note

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Historical Note on Perpendicular Bisector of Chord Passes Through Center

The argument for this particular result originates from Proposition $1$ of Book $\text{III}$ of Euclid's The Elements.

However, the result itself is due to Augustus De Morgan, who reasoned that this result was more fundamental.


This theorem is the converse of Proposition $3$ of Book $\text{III} $: Conditions for Diameter to be Perpendicular Bisector.


Sources