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中線定理(阿波羅尼奧斯)定理推廣二:向四邊形推廣
Author:
連琨銘
GeoGebra
New Resources
兩組對邊相等的四邊形
兩位數加法
找出對稱軸
四邉形 (四年級) 教師版
畫出對稱圖形
Discover Resources
謝丞宇
共頂點、底共線
no10
固定三角形的條件−題2的副本
元旦快乐(制作:孟宝兴)
Discover Topics
Geometric Mean
Parallelogram
Reflection
Surface
Standard Deviation