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过圆上一点作切线，三步
Author:
u.jianwang
GeoGebra
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中華民國國旗 (Codex╱2026.10.06)
幾何作圖題：切三圓（題目）
美國國旗 (Codex 版)
美國國旗 (Claude 版)
AI 訓練教室
Discover Resources
正四面體
判斷球體 2
glt-c05-04 三角錐旋轉
了解如何使用 GeoGebra 资源
切線 (The Tangent Line)
Discover Topics
Algebra
Similarity Transformation or Similarity
Vectors 2D (Two-Dimensional)
Optimization Problems
Pythagoras or Pythagorean Theorem