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圖一
Author:
wong wai man
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
球體建築師
算柱 (兩位數)
拼砌四邊形
画直线等分三角形的面积
兩位數加法
Discover Resources
過圓內c點的弦中點軌跡
中線定理(阿波羅尼奧斯)定理推廣二：向四邊形推廣
动态专题—角度旋转
堆四顆球
翻牌游戏中的数学道理
Discover Topics
Median Line
Trapezoid
Geometric Transformations
Orthocenter
Median Value