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等腰三角形三心的觀察
Author:
acchu
GeoGebra
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美國國旗 (Claude 版)
三半圓間的相切圓(Codex╱2026.10.07)
直角坐標平面上的旋轉變換
幾何作圖題：切三圓（題目）
Claude 解幾何題
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商高定理3
Clock
遞迴
Copy of 數線的繪製
翰林數學_2下_CH3-4_樞紐定理
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Trigonometric Functions
Numbers
Coordinates
Area
Reflection