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q5-11
Author:
johnmayhk
GeoGebra
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算柱 (兩位數)
兩組對邊相等的四邊形
小数 的副本
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
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平行四邊形有甚麼特性?
S3 Probability
No.1
perimeter
边长可变的正三角形上莱洛转子的滚动
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Numbers
Median Value
Translation
Surface
Kite