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根據百分率找數量（二）: 例2的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
四邊形的特性
直角坐標平面上的旋轉變換
Nested spiral octagon
算柱 (兩位數)
四邉形 (四年級) 教師版
Discover Resources
Nets of the cube
空間中的平面與直線
Sine Wave 3D
城市
滑桿2
Discover Topics
Bar Chart or Bar Graph
Cosine
Real Numbers
Equilateral Triangles
Expected Value