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鈍角三角形和矩形等積轉化
Author:
Li Lok Man
GeoGebra
New Resources
三角函数 的副本
异形操场
撒针估算面积实验
盈利與虧蝕
比較五件物件的重量
Discover Resources
滑桿分段控制的基礎
正八面體
角平分線
定義篇
比較角的大小(直接比較)
Discover Topics
Means
Centroid or Barycenter
Square
Statistics
Tangent Line or Tangent