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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
找出對稱軸
球体的体积推导(优化版)
畫出對稱圖形
兩位數除以一位數(一)
三位數除以一位數(一)
Discover Resources
高線
正十二面體轉正二十面體
兩圓外公切線
跳動的愛心-立體版
角度、弧度互換
Discover Topics
Percentages
Normal Distribution
Orthocenter
Standard Deviation
Cylinder