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Многоугольники
作者：
aleksandr.klein
GeoGebra
最新資源
Identifying Sine, Cosine, Tangent Ratios in Right Triangles (Quick)
Solving 2x2 and 3x3 Systems Using Cramer's Rule
Isosceles Triangle Cross Sections
Slopes of Parallel Lines
Slopes of Perpendicular Lines
探索資源
Investigations
Perpendicular Bisector in a Circle
Epicycloid & Epitrochoid
Triangle reflection
探索主題
立方（體）
坐標
三角函數
對稱
正切函數