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Castillon's Problem


Inscribe a Triangle in a Circle such that the sides of the Triangle pass through three given Points $A$, $B$, and $C$.


Dörrie, H. ``Castillon's Problem.'' §29 in 100 Great Problems of Elementary Mathematics: Their History and Solutions. New York: Dover, pp. 144-147, 1965.

© 1996-9 Eric W. Weisstein