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三角形三边关系
Author:
辛贺华
GeoGebra
New Resources
异形操场
盈利與虧蝕
双心四边形
直線的斜率：水平變化 & 鉛垂變化
龙形曲线-分形龙2
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內心
複合圖形(四)
locus wrt two pts on two indep. circle
雙心運動 大
餘數處理2
Discover Topics
Volume
Circumcircle or Circumscribed Circle
Polygons
Exponential Functions
Isosceles Triangles