IOQM · Mathematics · Geometry
Triangles
Congruence, similarity, special centres (centroid, incentre, circumcentre, orthocentre).
In the official syllabus: MTA(I) and HBCSE — Syllabus for Mathematical Olympiad, Plane Geometry (read 29 Sept 2026). The syllabus is written for the Mathematical Olympiad as a whole and says its list of topics is not exhaustive.
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