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Heart and Diamond 20190318
Author:
yeungchikeung
GeoGebra
New Resources
【案例】2013年安徽高考15题
四邊形的特性
找出對稱軸
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
Discover Resources
周界-平移法(練習二)
Distributive Law 2 (分配率 2)
廣義角
内外弦图
植树问题
Discover Topics
Ratios
Symmetry
Vectors 3D (Three-Dimensional)
Trigonometry
Confidence Interval