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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
兩組對邊相等的四邊形
柱體建築師
兩位數除以一位數(二)
拼砌四邊形
Discover Resources
光的折射(光线自右下向左上)
平面直角坐标系
P.4 對稱
椭圆内光的反射作图步骤
多邊形的切割與拼砌的副本
Discover Topics
Rhombus
Rotation
Centroid or Barycenter
Terms
Curve Sketching