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講義P80 剪出現對稱圖形.ggb
Author:
Cheng Weishiang
GeoGebra
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兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
兩位數加法
【案例】2018年全国1卷理科12题
四邉形 (四年級) 教師版
Discover Resources
四角柱體（長方體）的截面
triangle
拋體運動
我的第一个GGB绘本
活工(二)Q4
Discover Topics
Equilateral Triangles
Incircle or Inscribed Circle
Interest Calculation
Square
Stochastic Process or Random Process