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圓外切四邊形
Author:
Gideon Huang
GeoGebra
New Resources
找出對稱軸
兩位數加法
第八周作业
兩位數除以一位數（一）
球體建築師
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相似三角形
No.5
圓繞圓外
周界-平移法(教學練習一)
翰林數學_2下_CH3-4_大邊對大角
Discover Topics
Rectangle
Normal Distribution
Perimeter
Plane Figures or Shapes
Coordinates