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小正多边形在大正多边形内的滚动(边长相等)
Author:
孟宝兴
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩位數加法
【案例】2013年安徽高考15题
判斷球體
兩位數除以一位數(一)
Discover Resources
test1
perd fr ctr bisect
畢氏定理
正立方體截痕
作线段和角
Discover Topics
Correlation
Intersection
Tangent Line or Tangent
Fractal Geometry
Prism