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兩弦的長度比較
Author:
luke huang
GeoGebra
New Resources
畫出對稱圖形
異分母分數減法
兩位數除以一位數（一）
兩組對邊相等的四邊形
兩位數加法
Discover Resources
ma_test
封閉區域填色
棒形圖2
五角星
雙曲線2 焦點法
Discover Topics
Median Line
Perimeter
Geometric Mean
Hypothesis Testing
Cuboid