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动态专题—角度旋转
Author:
刘元平
GeoGebra
New Resources
GeoGebra笔记功能体验课件
畫出對稱圖形
画直线等分三角形的面积
錐體建築師
四邊形的特性
Discover Resources
電子幾何條（2014）
Wave Interference
錯角---垂直平行綫
椭圆抛物面
跳棋棋盘
Discover Topics
Symmetry
Trigonometric Functions
Unit Circle
Quadrilaterals
Similar Triangles