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橢圓
Author:
chen mingchuan
Topic:
Ellipse
GeoGebra
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画直线等分三角形的面积
異分母分數減法
拼砌四邊形
兩組對邊相等和有直角的四邊形
三位數除以一位數(二)
Discover Resources
quadrilaterals 3
Quiz on Interest 利息:測驗
椭圆的定义的副本
百度
第八周作业2
Discover Topics
General Quadrilateral
Addition
Angles
Definite Integral
Diagrams