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Author:
Ng KC
GeoGebra
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椭圆内切圆链
斐波那契螺旋弧线(表格法-可动态调节)
折扣
球体的截面
中华人民共和国国旗
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拉格朗日插值多項式
等周長的扇形與矩形
平行四邊形對角線
軌跡一︰移動點與一固定點保持固定距離(圓)
Copy of 題 5
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Area
LCM and GCD
Subtraction
Tree Diagrams
Sequences and Series