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GeoGebra Lesson
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GeoGebra Lesson
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最小周長
Author:
張丰耘
GeoGebra
New Resources
近似值：有效數字
伊朗國旗 (Codex╱2026.10.07)
畫出對稱圖形
長方體平面投影 (Codex版)
sanjiaohanshu
Discover Resources
Introduce tangent ratio
量角器2
題四
anlge at centre twice angle at circumference
一次函数的副本
Discover Topics
Linear Programming or Linear Optimization
Equilateral Triangles
Linear Regression
Complex Numbers
Triangles