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劉德晧proof14
Author:
郭亮偉
GeoGebra
New Resources
兩組對邊相等的四邊形
兩位數除以一位數（一）
兩組對邊相等和有直角的四邊形
第八周作业
GeoGebra笔记功能体验课件
Discover Resources
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小四小數
三角形，點上平分面積
向量的線性組合
畢氏定理的副本
Discover Topics
Boxplot
Mathematics
Triangles
Plane Figures or Shapes
Expected Value