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圆锥曲线折纸操作题（教材案例）
Author:
蔡永志
Topic:
Conic Sections
,
Ellipse
,
Hyperbola
GeoGebra
New Resources
兩組對邊相等的四邊形
柱體建築師
四邊形的特性
球體建築師
判斷球體
Discover Resources
Reflectional Symmetry 反射對稱
拋物線(開口向上)
球體體積圖解
斜坐標
angle in semi-circle
Discover Topics
Bar Chart or Bar Graph
Root
Equations
Incircle or Inscribed Circle
Special Points