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椭圆内切圆链
Author:
孟宝兴
GeoGebra
New Resources
兩位數加法
画直线等分三角形的面积
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
Discover Resources
函數圖像的變換2(由2點至5點定義y=f(x))
織布機織布機
Hyperbolic Paraboloid 的製作
串珠
小六 正方體的展開圖
Discover Topics
Frequency Distribution
Line Segment
Trigonometric Functions
Circumcircle or Circumscribed Circle
Combinatorics