Math Problem Statement
Cho tam giác ABC, AD,BE,CF là 3 đường cao, H là trực tâm của tam giác. CMR : AE/EC + AF/AB = AC/AG (dùng định lý Thales)
Solution
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Math Problem Analysis
Mathematical Concepts
Triangle geometry
Thales' theorem
Altitudes in triangles
Centroid
Formulas
-
Theorems
Thales' theorem
Suitable Grade Level
High school