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ie 4
Author:
LAM YU SANG
GeoGebra
New Resources
兩組對邊相等的四邊形
算柱 (兩位數)
四邉形 (四年級) 教師版
找出對稱軸
兩組對邊相等和有直角的四邊形
Discover Resources
Proof72 徐晏翎
Testing: addition
城市
维纳斯的身高 （简易版）
作垂线或平行线
Discover Topics
Random Experiments
Similarity Transformation or Similarity
Derivative
Arithmetic Mean
Variance