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兩弦的長度比較
Author:
luke huang
GeoGebra
New Resources
畫出對稱圖形
兩組對邊相等的四邊形
找出對稱軸
四邉形 (四年級) 教師版
拼砌四邊形
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特製的門
例子
Net of cone
六芒星
函数作图工具的副本
Discover Topics
Distributions
Hyperbola
Area
Addition
Mode