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Author:
曾耀輝
GeoGebra
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圓的基本性質
正方形雪花图案
活动三：应用性质
双心四边形
第八周作业
Discover Resources
HKDSE 3D Figures
任意兩正方形切割重組成一大正方形之動態證明
smps perimeter
S0G5平均不等式（无字证明）
指數函數與對數函數圖形圖形(同底)
Discover Topics
Solids or 3D Shapes
Function Graph
Circumcircle or Circumscribed Circle
Probability
Pythagoras or Pythagorean Theorem