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根據百分率找數量（二）: 例4的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
兩位數加法
第八周作业
【案例】2013年安徽高考15题
三位數除以一位數（一）
拼砌四邊形
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相似多邊形-縮放的性質
Area of polygon
公切線(配合Dilate指令)
horizontal
Oscillations
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Geometric Transformations
Polygons
Histogram
Centroid or Barycenter
Linear Equations