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Author:
Jianqiang He
GeoGebra
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兩組對邊相等和有直角的四邊形
兩位數除以一位數（一）
【案例】2013年安徽高考15题
算柱 (兩位數)
GeoGebra笔记功能体验课件
Discover Resources
相似圖形基本概念
「相似三角形」任务1
試試看吧!
織布機織布機
圓柱切割
Discover Topics
Pythagoras or Pythagorean Theorem
Triangles
Random Variables
Arithmetic Mean
LCM and GCD