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Author:
VCChung
GeoGebra
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判斷球體
四邊形的特性
兩組對邊相等和有直角的四邊形
找出對稱軸
算柱 (兩位數)
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過圓內c點的弦中點軌跡
Salaries Tax in Hong Kong 薪俸稅
封閉區域填色
垂心應用
初中数学探究
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Curve Sketching
Prism
Percentages
Trigonometry
Parametric Curves