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根據百分率找數量（二）: 例1的副本
Author:
音节-Lisa
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
球體建築師
四邊形的特性
錐體建築師
兩位數除以一位數（一）
Discover Resources
猜猜平均數（限時版）
The Beautiful Dance of the Earth and Venus
外心垂心問題
比例中的定值問題
時鐘
Discover Topics
Logarithmic Functions
Quadratic Equations
Combinatorics
Isosceles Triangles
Step Functions