The Angle Bisectors
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|Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny|
|A discussion of why the angle-bisectors of a triangle meet at the incenter of the triangle, in several different ways, involving: cevians, the transitivity property of equality, axes of a 2-line, altitudes and orthic triangles, and complex numbers.|
|Levels:||High School (9-12), College|
|Resource Types:||Web Interactive/Java|
|Math Topics:||Triangles and Other Polygons|
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