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长沙2019
Author:
谢鹏
GeoGebra
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第八周作业
科氏力 (Coriolis Force)
比較五件物件的重量
直線的斜率：水平變化 & 鉛垂變化
双心四边形
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圓與弦2
對角線
Quiz on Addition and Subtraction of Directed Numbers (1) 有向數加減測驗(1)
凹透镜
畢式定理 (13)的副本
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Numbers
Similar Triangles
Constructions
Polygons
Equilateral Triangles