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三角形外心的位置
Author:
均一
GeoGebra
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四邊形的特性
畫出對稱圖形
直角坐標平面上的旋轉變換
GeoGebra笔记功能体验课件
拼砌四邊形
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大圓在小圓上滾動
複合圖形(六)
P.4對稱
滑桿應用
三角函数y=sin(wx+b)的图象变换.许兴华数学
Discover Topics
Equations
Mathematics
Constructions
Vectors 2D (Two-Dimensional)
Secant Line or Secant