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正方体截面
Author:
张老师
GeoGebra
New Resources
正方形雪花图案
异形操场
直線的斜率：水平變化 & 鉛垂變化
平行線的判定
百分數及其應用
Discover Resources
探究正方體的截面
圖一
五位數
數理資優班 寒假探索營 2017 1 24
椭圆的离心率
Discover Topics
Circumcircle or Circumscribed Circle
Equations
General Quadrilateral
Plane Figures or Shapes
Solids or 3D Shapes