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初二奥数：全等三角形
Author:
王俊辉
初二奥数：全等三角形
见页面
Discover Resources
Points of Concurrency in Triangles
Koehler Task 6a
Coxeter Groups
Warm Up #2
Analyyttinen Geometria
New Resources
HEXAGON
Solve Base
Reflect Points Explorer
Coins in a row
Exploration 2 - Proportionallity with 3 Lines
