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轨迹19
Author:
万超杰
GeoGebra
New Resources
平行線的判定
双心四边形
活动三:应用性质
百分數及其應用
折扣
Discover Resources
函數的切線
錯角
切割柏拉圖多面體
椭圆的定义
小正方体堆积的三视图
Discover Topics
Geometry
Perimeter
Circle
Equilateral Triangles
Constructions