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平行线分线段成比例
Author:
杨华
GeoGebra
New Resources
【案例】圆柱体内放置一个大球六个小球
三位數除以一位數（一）
錐體建築師
判斷球體
異分母分數減法
Discover Resources
Surface area of sphere
雙曲線的漸進線2
勒洛三角形頂點C軌跡
求切线方程(改进)
小正方体堆积的三视图
Discover Topics
Pythagoras or Pythagorean Theorem
Similar Triangles
General Quadrilateral
Trigonometry
Geometric Distribution