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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
三位數除以一位數（一）
sanjiaohanshu
判斷球體
小数 的副本
三位數除以一位數（二）
Discover Resources
七巧板兔子12月坊
Quiz on Addition and Subtraction of Directed Numbers (2) 有向數加減測驗(2)
線型函數與圖形
圓柱(可改底面圓半徑、柱高)
橢圓軌跡
Discover Topics
Exponent
Cylinder
Similarity Transformation or Similarity
Linear Regression
Incircle or Inscribed Circle