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GeoGebra
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Unter- und Obersumme
Author:
迎锋 徐
GeoGebra
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科赫雪花
百分數及其應用
正方形雪花图案
比較五件物件的重量
平行線的判定
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ray tracing 2 lens
Is this a prism 8
相同圖形的拼砌(三角形)
P6 圓周01C
展開圓面積 (講義版)的副本
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Pyramid
Limits
Surface
Solids or 3D Shapes
Circumcircle or Circumscribed Circle