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數據分析（1）
Author:
1041015楊山佩
GeoGebra
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Earth with coastline
兩組對邊相等和有直角的四邊形
Fibonacci Clock
判斷球體
第八周作业
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面積認識
GGB3
Copy of 平行四邊形的面積
正十二面體裁邊 (Chamfered Dodecahedron)
拋物線6-包絡線法
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Arithmetic Operations
Mathematics
Division
Sphere
Angles