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Author:
yuchengda
GeoGebra
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找出對稱軸
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
【案例】2013年安徽高考15题
球体的体积推导（优化版）
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判斷柱體 7
優良作品5
歐拉圓
勾股定理证明演示--分割股边
奔马
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Probability
Kite
Conditional Probability
Geometric Distribution
Power Functions