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向量的隐圆2-直径圆
Author:
吕胜
GeoGebra
New Resources
活动三：应用性质
中华人民共和国国旗
龙形曲线-分形龙
斐波那契螺旋弧线（表格法）
折扣
Discover Resources
Quiz on Solving Right Triangles (Combined) 解直角三角形：合併測驗
千年曆
拋物線
正十二面體內接正四面體或內接正六面體
双曲线旋转
Discover Topics
Solids or 3D Shapes
Incircle or Inscribed Circle
Triangles
Functions
Power Functions