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平移旋轉
Author:
chen mingchuan
GeoGebra
New Resources
兩位數加法
【案例】圆柱体内放置一个大球六个小球
兩位數除以一位數（一）
四邉形 (四年級) 教師版
算柱 (兩位數)
Discover Resources
Two lines
試算表的應用
截平面
圆锥曲线1
美丽的斯坦纳圆链
Discover Topics
Numbers
Plane Figures or Shapes
Incircle or Inscribed Circle
Reflection
Geometric Distribution