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旋转2
Author:
Arvin
GeoGebra
New Resources
撒针估算面积实验
常见四边形是否是双心四边形
第八周作业
第三周作业效果演示
第八周作业2
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橢圓的軌跡
glt-h02-05-圓錐展開
Copy of 固定面積的圖形的周界變化
S1 Ex9Re Q24
題二
Discover Topics
Rhombus
Centroid or Barycenter
Incircle or Inscribed Circle
Geometric Transformations
Vectors 3D (Three-Dimensional)