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相切的圆
Author:
王广喜
GeoGebra
New Resources
找出對稱軸
兩位數加法
三位數除以一位數（一）
畫出對稱圖形
画直线等分三角形的面积
Discover Resources
Angles at the same segment
+55++5+5
軌跡觀察
多邊形面積(分割法)
RLC並聯諧振
Discover Topics
Difference and Slope
Incircle or Inscribed Circle
Similar Triangles
Tangent Function
Geometric Transformations