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Author:
waiman_luk
GeoGebra
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斐波那契螺旋弧线（表格法-可动态调节）
龙形曲线-分形龙2
龙形曲线-分形龙
第八周作业
折扣
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圖一
Sectors 扇形
同心圓
分數小數
單點透視法
Discover Topics
Incircle or Inscribed Circle
Area
Linear Functions
Quadrilaterals
Pythagoras or Pythagorean Theorem