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劉德晧proof14
Author:
郭亮偉
GeoGebra
New Resources
拼砌四邊形
判斷球體
畫出對稱圖形
画直线等分三角形的面积
找出對稱軸
Discover Resources
Helicoid
優良作品6(沛綺)
配方法 Completing the Square
相似形應用_進階_Collection
Percentage(百分法)
Discover Topics
Circumcircle or Circumscribed Circle
Equilateral Triangles
Means
Incircle or Inscribed Circle
Inequalities