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[洋葱] 勾股定理余弦定理
Author:
acchu
GeoGebra
New Resources
祖冲之的期望：内棋与外棋
圓的切線方程
百分數及其應用
圓周公式的應用
直線的斜率
Discover Resources
行程圖 (Travel Graph)
平行四邊形對角線
周界(移邊)
Triangle (Angle)
congruent triangle_provided by Mr Yeung Kar Chun
Discover Topics
Combinatorics
Perimeter
Piecewise Functions
Parabola
Vectors 3D (Three-Dimensional)