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Measuring areas by placing different shapes
Author:
Shum Kwok Ching
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
算柱 (兩位數)
四邉形 (四年級) 教師版
四邊形的特性
球體建築師
三位數除以一位數（二）
Discover Resources
基測試題滾動
过圆上一点作切线，三步
直線上的鄰角_1
Locus
达芬奇椭圆仪
Discover Topics
Probability
Scalene Triangles
Rectangle
Matrices
Variance