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正12面體
Author:
GEOGEBRA啟
GeoGebra
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画直线等分三角形的面积
四邉形 (四年級) 教師版
兩組對邊相等的四邊形
畫出對稱圖形
判斷球體
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Quiz on Solving Quadratic Inequalities 解二次不等式：測驗
向量和的試題１
二次函數圖形測驗
圓圈圈
測試繪本
Discover Topics
Incircle or Inscribed Circle
Real Numbers
Isosceles Triangles
Standard Deviation
Parametric Curves