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蝴蝶定理（唐老师的课程）
Author:
龚洪萍
Topic:
Algebra
,
Geometry
GeoGebra
New Resources
柱體建築師
找出對稱軸
錐體建築師
兩位數除以一位數（二）
【案例】2013年安徽高考15题
Discover Resources
等積的正方形與正三角形
對稱及變換
三位小數
畢氏定理
正方体展开图的副本
Discover Topics
Congruence
Trigonometry
Normal Distribution
Similarity Transformation or Similarity
Trapezoid