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橢圓軌跡
Author:
Ching-Hui Chou
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
異分母分數減法
四邉形 (四年級) 教師版
三位數除以一位數（一）
兩位數除以一位數（一）
Discover Resources
圓與切線
love
GeoGebra Tube
優良作品2(季緯)
Copy of Triangular Number
Discover Topics
Right Triangles
Parametric Curves
Linear Programming or Linear Optimization
Diagrams
Division