In Euclidean geometry, Kosnita's theorem is a property of certain circles associated with an arbitrary triangle. Let △ABC be an arbitrary triangle, O its circumcenter and Oa, Ob, Oc are the circumcenters of three triangles △OBC, △OCA, and △OAB respectively.
In Euclidean geometry, Kosnita's theorem is a property of certain circles associated with an arbitrary triangle. Let △ABC be an arbitrary triangle, O its circumcenter and Oa, Ob, Oc are the circumcenters of three triangles △OBC, △OCA, and △OAB respectively.
Source: Wikipedia "Kosnita's theorem" · CC BY-SA 4.0
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