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翰林數學_2下_CH3-1_三角形的外角和
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翰林數學
GeoGebra
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幾何作圖題：切三圓（題目）
國旗 (作圖步驟直接餵給 Claude)
近似值：有效數字
三半圓間的相切圓(Codex╱2026.10.07)
國旗 (Claude 版)
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國中(1-1等線段作圖)
Beemo
斜線
基礎作圖1
平面几何问题
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Diagrams
Triangles
Linear Functions
Special Points
Stochastic Process or Random Process