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足迹
Author:
孟宝兴
足迹
GeoGebra
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兩位數除以一位數(一)
四邉形 (四年級) 教師版
兩組對邊相等的四邊形
三位數除以一位數(二)
判斷球體
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Ex (SAS)
切割柏拉圖多面體
圓例9
椭圆内部全等的双椭圆构造.许兴华数学
活工(二)Q3
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Terms
Quadrilaterals
Tangent Line or Tangent
Difference and Slope
Similarity Transformation or Similarity