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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
找出對稱軸
拼砌四邊形
球体的体积推导
判斷球體
兩組對邊相等和有直角的四邊形
Discover Resources
圓的平移
单位圆画三角函数图像
导数
拋物線5--包絡線法
初中二次函数课件设计（毕业设计）
Discover Topics
Tangent Line or Tangent
Ratios
Statistics
Division
Reflection