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焦点弦2
Author:
liu
GeoGebra
New Resources
第八周作业
撒针估算面积实验
比較五件物件的重量
正方形雪花图案
第八周作业2
Discover Resources
repetitive square
sun2
ｔｅｓｔ
威畢特點
旋轉圓弧
Discover Topics
Centroid or Barycenter
Solids or 3D Shapes
Constructions
Symmetry
Pythagoras or Pythagorean Theorem