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DragonCurve_2018sep-2
Author:
David HUNG
GeoGebra
New Resources
第八周作业3
正方形雪花图案
折扣
异形操场
斐波那契螺旋弧线（表格法）
Discover Resources
畫三角形 題2e
托勒密定理推廣到任意四邊形二
認識角度
Addition and Subtraction of Directed Numbers (2)
旋转的花瓣
Discover Topics
Geometry
Rhombus
Rectangle
Power Functions
Incircle or Inscribed Circle