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拼貼2
Author:
李伶芳
GeoGebra
New Resources
兩組對邊相等的四邊形
拼砌四邊形
四邊形的特性
錐體建築師
兩位數除以一位數（二）
Discover Resources
Proof77 - 楊筑雯
太极图
莫比烏斯帶02
圓錐截橫
谢氏地毯
Discover Topics
Arithmetic Mean
Arithmetic Operations
Bar Chart or Bar Graph
Root
Arithmetic