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未命名123
Author:
Chong
GeoGebra
New Resources
中华人民共和国国旗
三角函数 的副本
第八周作业
龙形曲线-分形龙
斐波那契螺旋弧线（表格法-可动态调节）
Discover Resources
正切函數值的變化
DSE Circle-ACT03B Relationship Between Chords and Angles at Centre
多次分割平行四邊形
All in one (Centres of triangle)
夾擠定理 (The Squeeze Theorem)
Discover Topics
Square
Dilation
Cube
Sine
Circumcircle or Circumscribed Circle