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伸展收縮變換
Author:
takaywong
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩位數除以一位數（一）
拼砌四邊形
三位數除以一位數（二）
近似值：有效數字
Discover Resources
Perigal's Dissection
兩位數除法
反演的應用：鞋匠的小刀
正方形推垛
Cross Product for 2D Vectors (平面外積)
Discover Topics
Translation
Dilation
Scatter Plot
Confidence Interval
Constructions