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Tangent of a Circle 圓的切線
Author:
Alex CHIK
GeoGebra
gMath 互動數學教室
http://www.geogebra.hk
New Resources
Fibonacci Clock
找出對稱軸
畫出對稱圖形
直角坐標平面上的旋轉變換
長方體平面投影 (Codex版)
Discover Resources
Triangular Prism Net
簡單動畫
圓在直線上滾動
勒洛三角形頂點B軌跡
乘法训练
Discover Topics
Complex Numbers
Multiplication
Addition
Integers
Quadratic Equations