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點的旋轉
Author:
Loi Teng Chong
GeoGebra
New Resources
斐波那契螺旋弧线（表格法）
第八周作业
第八周作业2
龙形曲线-分形龙2
三角函数 的副本
Discover Resources
HKMO 2013 Question 3 Demonstration (Geometric Construction)
相似結合畢氏定理問題
Circumcentre
-(√3/2)³ ≤ sinα sinβ sinγ ≤ (√3/2)³
三角形的三心
Discover Topics
Hyperbola
Linear Programming or Linear Optimization
Plane Figures or Shapes
Fractions
Coordinates