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平行四邊形有甚麼特性？
Author:
Anthony OR 柯志明
Topic:
Parallelogram
English version:
http://ggbtu.be/m79826
GeoGebra
New Resources
國旗 (作圖步驟直接餵給 Claude)
四邊形的特性
找出對稱軸
四邉形 (四年級) 教師版
長方體平面投影 (Codex版)
Discover Resources
旁心三角形的九點圓
累積頻數多邊形及累積頻數曲線
勒洛三角形任意點P軌跡
分数应用题——巧分烧饼
GeoGebra创建的小游戏集
Discover Topics
Circumcircle or Circumscribed Circle
Equilateral Triangles
Set Theory
Inequalities
Median Value