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congruent (SA) 2
Author:
Ricky Chan
GeoGebra
New Resources
兩位數加法
兩組對邊相等的四邊形
柱體建築師
三位數除以一位數（一）
找出對稱軸
Discover Resources
動國旗
Bar Chart and Pie Chart(棒形圖及圓形圖)
線型函數
基础知识
谢庆GGB绘本一
Discover Topics
General Quadrilateral
Angles
Logarithmic Functions
Circumcircle or Circumscribed Circle
Incircle or Inscribed Circle