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内凹的正方形
Author:
陈宜红
Topic:
Plane Figures or Shapes
GeoGebra
New Resources
錐體建築師
異分母分數減法
画直线等分三角形的面积
兩組對邊相等和有直角的四邊形
【案例】2013年安徽高考15题
Discover Resources
簡單動畫
線段與弧所構成封閉區域的填塞問題
Similar triangles inscribed iteration400
HHHH
circle: line from centre
Discover Topics
Addition
Fractions
Translation
Sphere
Variance