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S12G4 長方形內夾正方形的周長問題
Author:
学用数学
GeoGebra
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判斷球體
找出對稱軸
四邉形 (四年級) 教師版
兩位數加法
【案例】2018年全国1卷理科12题
Discover Resources
Add and subtract (binary)
Rectangle _03
陳柄何的GGB book
quadrilaterals 2
正四面體變菱形12面體
面积平分线
Discover Topics
Optimization Problems
Reflection
Plane Figures or Shapes
Expected Value
Kite