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滾動的圓
Author:
吳政憲
GeoGebra
New Resources
三位數除以一位數（一）
拼砌四邊形
【案例】2013年安徽高考15题
兩位數除以一位數（一）
兩組對邊相等和有直角的四邊形
Discover Resources
Finding the H.C.F. and the L.C.M.
倒數計時
rotational symmetry_3
圓與正方形中點軌跡1060317
椭圆的定义
Discover Topics
Addition
Vectors 3D (Three-Dimensional)
Parametric Curves
Optimization Problems
Upper and Lower Sum or Riemann Sum