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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
美國國旗 (Codex, 2026.10.06)
找出對稱軸
伊朗國旗 (Codex╱2026.10.07)
四邊形的特性
小数 的副本
Discover Resources
congruent (SAS)
畢氏定理1
對稱-釘板-Student
curve 函數的示範
Fill the circle的副本
Discover Topics
Scalene Triangles
Geometry
Geometric Mean
Random Experiments
Trigonometric Functions