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椭圆的定义
Author:
guomenglin
Topic:
Ellipse
GeoGebra
New Resources
圓的切線方程
第八周作业
画直线等分三角形的面积
平行線的斜率
三位數除以一位數（二）
Discover Resources
Catenoid
畢式定理 (03)
雙橢
circuit
多边形外角和的副本
Discover Topics
Pie Chart or Circle Chart
Dilation
Matrices
Fractal Geometry
Square