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任意三角形外心與外接圓
Author:
郭逸民
GeoGebra
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畫出對稱圖形
四邊形的特性
兩組對邊相等的四邊形
【案例】2018年全国1卷理科12题
錐體建築師
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三個外切圓
固定周界的長方形面積變化
紙幣
畢氏定理的證明
三角形內心
Discover Topics
General Quadrilateral
Conic Sections
Fractal Geometry
Parametric Curves
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