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黃金矩形
Author:
vinnyya
GeoGebra
New Resources
幾何作圖題：切三圓（題目）
美國國旗 (Claude 版)
AI 訓練教室
長方體平面投影 (Codex版)
世界平面地圖 (Codex╱2026.10.07)
Discover Resources
四下_認識小數(教師版)
sierpinski carpet
ghseh 二次函數描點法頂點法-2
莫比烏斯帶01
探索三角形外角定理
Discover Topics
Scatter Plot
Pythagoras or Pythagorean Theorem
Trapezoid
LCM and GCD
Linear Programming or Linear Optimization