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內公切線長
Author:
luke huang
GeoGebra
New Resources
兩組對邊相等的四邊形
GeoGebra笔记功能体验课件
第八周作业
【案例】2018年全国1卷理科12题
拼砌四邊形
Discover Resources
可變大的圓桌
Prism and Cylinder 1
椭圆的定义
Copy of 倒數計時
橢圓的副本
Discover Topics
Logic
Coordinates
Vectors 3D (Three-Dimensional)
Straight Lines
Conic Sections