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Properties of parallelogram(平行四邊形的性質)
Author:
chisunch1
GeoGebra
New Resources
異分母分數減法
拼砌四邊形
畫出對稱圖形
兩組對邊相等和有直角的四邊形
四邊形的特性
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平行四邊形對角線
錐體建築師 2
Ｑ５
黃金三角形
三角形的面積的副本
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