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Author:
清綺楊
GeoGebra
New Resources
近似值：有效數字
長方體平面投影 (Codex版)
Earth with coastline
直角坐標平面上的旋轉變換
Fibonacci Clock
Discover Resources
掃描不等式 (講義版)
F1Geometry
不規則圖形填入斜線
圓周角與圓心角之度數關係臆測（圓心在圓周角的內部）
圆锥曲线的统一画法.许兴华数学
Discover Topics
Circle
Correlation
Secant Line or Secant
Constructions
Division