bn:00648004n
Noun Named Entity
Categories: Theorems about triangles and circles
EN
Lester's theorem  Lester's circle theorem  Lester Circle  Lester's circle  Lester circles
EN
In Euclidean plane geometry, Lester's theorem states that in any scalene triangle, the two Fermat points, the nine-point center, and the circumcenter lie on the same circle. Wikipedia
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