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正四面体的切接球
Author:
蔡永志
Topic:
Sphere
正四面体的切接球
GeoGebra
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【案例】2013年安徽高考15题
判斷球體
兩組對邊相等和有直角的四邊形
找出對稱軸
畫出對稱圖形
Discover Resources
垂心即內心
塗色
straight line
算幾不等式
小游戏
Discover Topics
Conic Sections
Curve Sketching
Poisson Distribution
General Quadrilateral
Coordinates