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椭圆的定义
Author:
guomenglin
Topic:
Ellipse
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
判斷球體
兩組對邊相等的四邊形
画直线等分三角形的面积
錐體建築師
Discover Resources
軌跡觀察---兩軸上的固定長定點軌跡
(007)80102
Golden Ratio (phi) Collection
近期新增圖檔
HKDSE 2015 by Mr LO WY
Discover Topics
Pie Chart or Circle Chart
Tree Diagrams
Diagrams
Exponential Functions
Geometry