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橢圓內的反射
Author:
官長壽(longlife)
GeoGebra
New Resources
兩位數除以一位數（一）
四邊形的特性
第八周作业
兩組對邊相等和有直角的四邊形
GeoGebra笔记功能体验课件
Discover Resources
Addition and Subtraction of Directed Numbers (2) 有向數加減(2)
軌跡,摺紙,滾動,實驗觀察,曲線
補角關係
七角柱(可側轉、上下轉)
黄金螺线与向日葵-朱老师
繪畫四邊形
Discover Topics
Perimeter
Translation
Trigonometric Functions
Cylinder
Logarithm