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對摺平行四邊形
Author:
hingchan
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
三位數除以一位數（二）
拼砌四邊形
判斷球體
Discover Resources
數線(小數的認識)
正三角形
纏繞畫1
一次函数的副本
将三角形面积一分为二
Discover Topics
Poisson Distribution
Similarity Transformation or Similarity
General Quadrilateral
Mode
Translation