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正方形推垛
Author:
施奕瑄
GeoGebra
New Resources
判斷球體
畫出對稱圖形
錐體建築師
兩位數加法
第八周作业
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畢氏定理動態證明(歐基里得，平形四邊形等面積2，應用時間參數跳躍函數配合向量)
分数整体与部分为单位1的线段图示
Exploration of the conditions for congruent triangles.
沪教版练习册7.4第4题
对多边形对角线、内角和、外角和的理解
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Polygons
Circle
Definite Integral
Linear Programming or Linear Optimization
Isosceles Triangles