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Quiz on Centres of Triangles 三角形的中心:測驗
Author:
Alex CHIK
GeoGebra
gMath 互動數學教室
http://www.gmath.hk
New Resources
兩位數除以一位數(一)
sanjiaohanshu
錐體建築師
兩位數加法
四邉形 (四年級) 教師版
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[問題] a² + b² = 1, (c-4)² + (d-2)² = 5,求 ad - bc 最大值?
定值角度
旋轉+伸縮正多邊形
斜率 - 概念及定義 (2)的副本
S3 WS4.3 Q02(3D圖)
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Median Value
Ratios
Optimization Problems
Bar Chart or Bar Graph
LCM and GCD