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根據百分率找數量（一）:例1的副本
Author:
音节-Lisa
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
兩組對邊相等的四邊形
GeoGebra笔记功能体验课件
球體建築師
第八周作业
四邉形 (四年級) 教師版
Discover Resources
判斷柱體 1
angle 123
Interest（利息）
圆锥侧面展开图
柱面
Discover Topics
Rectangle
Circle
Means
Functions
Incircle or Inscribed Circle