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梯形堆垛
Author:
施奕瑄
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
【案例】2013年安徽高考15题
第八周作业
柱體建築師
画直线等分三角形的面积
Discover Resources
測試
cube
三心
Parallelogram
同心圓
Discover Topics
Incircle or Inscribed Circle
Special Points
Area
Constructions
Numbers