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圖B
Author:
whtong
GeoGebra
New Resources
常见四边形是否是双心四边形
圓的基本性質
双心四边形
科赫雪花
盈利與虧蝕
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相似三角形
分數乘法與除法
軌跡一︰移動點與一固定點保持固定距離(圓)
根號n的做圖法之二
了解圓方程(2)的副本
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Combinatorics
Orthocenter
Integral Calculus
Secant Line or Secant
Scalene Triangles