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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
拼砌四邊形
兩位數加法
画直线等分三角形的面积
【案例】圆柱体内放置一个大球六个小球
算柱 (兩位數)
Discover Resources
滾動圓周來發現圓周長
Angle between a Line and a Plane 投影與線面角
切割正四面體
双曲线和直线的位置关系
Magic Matches
Discover Topics
Parallelogram
Ellipse
Coordinates
Indefinite Integral
Conic Sections