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2-1-2-a
Author:
Joye Wang
GeoGebra
New Resources
國旗 (作圖步驟直接餵給 Claude)
中華民國國旗 (Codex╱2026.10.06)
幾何作圖題：切三圓（題目）
畫出對稱圖形
近似值：有效數字
Discover Resources
Light reflected in ellipse
sin(x) 的函數圖形的副本
三角形重心的变化.许兴华数学
三角形三边关系
小数除法
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Inequalities
Isosceles Triangles
Volume
Probability
Geometric Transformations