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根據百分率找數量（一）: 例2的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
四邊形的特性
GeoGebra笔记功能体验课件
球體建築師
画直线等分三角形的面积
Discover Resources
大樂透開獎機
坐标变换
Copy of 固定周界的長方形的面積變化
杨桃李GGB绘本
全景平面投影
Discover Topics
Step Functions
Functions
Parametric Curves
Differential Calculus
Histogram