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觀察角度影響形狀的變化
Author:
官長壽(Kuan Chang-Sou)
GeoGebra
阿壽工坊---
http://120.101.70.8/longlife/
New Resources
畫出對稱圖形
四邊形的特性
兩位數除以一位數（一）
画直线等分三角形的面积
第八周作业
Discover Resources
反射路徑(角落進洞)
分數與小數
椭圆第一定义
Magic Matches
漂亮的摇摆曲线
Discover Topics
Sphere
Polygons
Conditional Probability
Addition
Vectors