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根據百分率找數量（一）: 例3的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
GeoGebra笔记功能体验课件
四邊形的特性
畫出對稱圖形
兩組對邊相等的四邊形
球體建築師
Discover Resources
rectangle construction
四角柱
錐體體積比較
橢圓2-四圓心近似法
俄罗斯方块（第二版）
Discover Topics
Poisson Distribution
Algebra
Similar Triangles
Line Segment
Natural Numbers