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3-3-09
Author:
Tzuen Hsu
GeoGebra
New Resources
近似值：有效數字
畫出對稱圖形
幾何作圖題：切三圓（題目）
美國國旗 (Claude 版)
美國國旗 (Codex, 2026.10.06)
Discover Resources
到正四面體頂點的平方和
Parallelogram 02
My GGB Book
三角函數的週期變化
布丰投针实验
Discover Topics
Trapezoid
Planes
Distributions
Solids or 3D Shapes
Unit Circle