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Concept of Ratios 比的概念
Author:
Alex CHIK
拖拉紅色點,將
(讀作
比
)或
(讀作
比
比
)化至最簡。
GeoGebra
gMath 互動數學教室
http://www.geogebra.hk
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GeoGebra笔记功能体验课件
画直线等分三角形的面积
第八周作业
四邉形 (四年級) 教師版
兩組對邊相等的四邊形
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fold and unflod the cone with geogebra5.0
Book4
Triangle fixed height
複利計算(1)
homework
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