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[洋葱] 2018河南22-图形旋转求值
Author:
洋葱教研
GeoGebra
New Resources
四邊形的特性
四邉形 (四年級) 教師版
第八周作业
兩位數加法
找出對稱軸
Discover Resources
欢度春节（灯笼）
祖暅之《綴術》：「緣冪勢既同，則積不容異。」
No.3
perimeter
圓與正方形中點軌跡1060317
Discover Topics
Exponent
Pythagoras or Pythagorean Theorem
Angles
Special Points
Symmetry
