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折線1
Author:
chen mingchuan
GeoGebra
New Resources
双心四边形
百分數及其應用
斐波那契螺旋弧线(表格法)
龙形曲线-分形龙2
平行線的判定
Discover Resources
對數圖形的平移
常用等价无穷小示意图
正方形推垛
Golden Ratio (phi) Collection
等腰三角形 - 等角對等邊的副本
Discover Topics
Centroid or Barycenter
Similar Triangles
Right Triangles
General Quadrilateral
Median Line