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半角模型
Author:
杨华
GeoGebra
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第八周作业3
斐波那契螺旋弧线(表格法)
常见四边形是否是双心四边形
第八周作业1
折扣
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內切圓滾動
三角形外心-性質說明
test
All you need is
林昌翰 拋物面鏡
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Isosceles Triangles
Congruence
Equations
Special Points
Polygons