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0:43
YouTube
XiaoTiDaZuo
Incenter-Excenter Lemma ( Trillium Theorem ) #maths #geometry #inceter #excenter #tridentlemma
The Incenter–Excenter Lemma (sometimes known as the A-I-E Line Theorem) is a result in geometry that describes a special relationship involving four key points of a triangle. For any given triangle (let's call its vertices A, B, and C), the lemma connects the following: The Incenter (the center point where the triangle's three internal angle ...
2 months ago
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