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Author:
方酩淇
GeoGebra
New Resources
兩位數除以一位數（一）
四邉形 (四年級) 教師版
兩位數除以一位數（二）
畫出對稱圖形
找出對稱軸
Discover Resources
simson line
畢氏定理證明（Ｉ）
銳角、直角和鈍角
绘制平面区域内整点的两种方法
橢圓(左右型)標準式
Discover Topics
Parabola
Plane Figures or Shapes
Random Experiments
Angles
Circumcircle or Circumscribed Circle