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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
兩組對邊相等和有直角的四邊形
拼砌四邊形
四邉形 (四年級) 教師版
GeoGebra笔记功能体验课件
四邊形的特性
Discover Resources
百分數（小學）：折扣 / 賺賠
基測數學100-1-30 等腰三角形的角度
Centroid
拋物線的幾何性質
椭圆滚动
Discover Topics
Sphere
Incircle or Inscribed Circle
Parametric Curves
Pie Chart or Circle Chart
Vectors 3D (Three-Dimensional)