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作垂线或平行线
Author:
龚佳林
过已知点作已知直线的垂线
GeoGebra
过已知点作已知直线的平行线
GeoGebra
New Resources
兩組對邊相等的四邊形
GeoGebra笔记功能体验课件
球体的体积推导
兩位數加法
拼砌四邊形
Discover Resources
function3
題二
軌跡
尤拉的介紹與尤拉線的證明
k-ko-
Discover Topics
Cosine
Geometric Transformations
Constructions
Linear Regression
Cylinder