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20190530 與平行線有關的角
Author:
Hui Sir
GeoGebra
New Resources
龙形曲线-分形龙
异形操场
三角函数 的副本
平行線的判定
常见四边形是否是双心四边形
Discover Resources
數學模型
拼貼11939
动态专题—角度旋转
Copy of angle between line and plane
鸚鵡螺旋線
Discover Topics
Conic Sections
Coordinates
Arithmetic Operations
Sine
Cube