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Author:
Bennie Liu
GeoGebra
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兩組對邊相等的四邊形
【案例】2013年安徽高考15题
四邊形的特性
直角坐標平面上的旋轉變換
畫出對稱圖形
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P4 分數基礎
複合圖形(三)
glt-h02-05-圓錐展開
直角三角形與正三角形
外面有圓
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Volume
Optimization Problems
Exponential Functions
Trapezoid
Tree Diagrams