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對摺平行四邊形
Author:
hingchan
GeoGebra
New Resources
錐體建築師
【案例】2013年安徽高考15题
算柱 (兩位數)
找出對稱軸
兩組對邊相等的四邊形
Discover Resources
動態角=30
優良作品2(季緯)
畢氏三元數
向量與坐標
高尔顿钉板实验
Discover Topics
Linear Programming or Linear Optimization
Congruence
Real Numbers
Parallelogram
Straight Lines