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三角形三边关系和三线
Author:
Pychiel Zheng
Topic:
Triangles
GeoGebra
New Resources
盈利與虧蝕
科赫雪花
折扣
平行線的判定
正方形雪花图案
Discover Resources
直線與圓的位置關係
圓周 (圖形D)
三圓相切
我的傑作6C04
任意三角形兩不等圓v3
Discover Topics
Surface
Incircle or Inscribed Circle
Rhombus
Circle
Cylinder