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小正多边形在大正多边形内的滚动（边长不相等）
Author:
孟宝兴
GeoGebra
New Resources
找出對稱軸
柱體建築師
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
兩位數加法
Discover Resources
Addition and Subtraction of Directed Numbers (2) 有向數加減(2)
軌跡,摺紙,滾動,實驗觀察,曲線
優良作品7
y=a*tan(b*x)
P.4對稱
畢氏定理-面積切割法
Discover Topics
Difference and Slope
Reflection
Derivative
Tangent Line or Tangent
Coordinates