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Sum of Exterior Angles of Polygons
Author:
pycchansir
GeoGebra
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平行線的判定
撒针估算面积实验
三角函数 的副本
常见四边形是否是双心四边形
盈利與虧蝕
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線性組合
正四面體的反射對稱
mearm機械手臂模擬
比例中的定值問題(二)
劉徽的「割圓術」的副本
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Similar Triangles
Logarithmic Functions
Ellipse
Polygons
Vectors