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GeoGebra Lesson
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GeoGebra Lesson
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三角形外心
Author:
Chang Hui Fang
GeoGebra
New Resources
世界平面地圖 (Codex╱2026.10.07)
美國國旗 (Codex, 2026.10.06)
美國國旗 (Claude 版)
美國國旗 (Codex 版)
sanjiaohanshu
Discover Resources
Angle Sum in a Triangle
圆柱截方
正方体展开图的副本
圆之吻(Apollonius circles)
正方形纸片剪出正三角形(顶点在边上)
Discover Topics
Geometric Transformations
Circumcircle or Circumscribed Circle
Histogram
Conic Sections
Congruence