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Locus 軌跡(2T)
Author:
Alex CHIK
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
兩組對邊相等的四邊形
拼砌四邊形
兩位數除以一位數（一）
異分母分數減法
畫出對稱圖形
Discover Resources
風車2
判斷錐體 4
Measuring areas by placing different shapes
填色問題(封閉圖形)
兩組對邊相等和有直角的四邊形
Discover Topics
Expected Value
Hypergeometric Distribution
Ratios
Natural Numbers
Conditional Probability