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三角形三边关系
Author:
辛贺华
GeoGebra
New Resources
科赫雪花
双心四边形
科氏力 (Coriolis Force)
龙形曲线-分形龙
活动三：应用性质
Discover Resources
光芒之星
ghseh 二次函數描點法左右平移-2
test007
認識分數的副本
巧算周界
Discover Topics
Pythagoras or Pythagorean Theorem
Circumcircle or Circumscribed Circle
Vectors
Cylinder
General Quadrilateral