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橢圓的切線作圖
Author:
紀延平
GeoGebra
New Resources
兩組對邊相等的四邊形
兩位數加法
判斷球體
算柱 (兩位數)
【案例】2013年安徽高考15题
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直線之美
模擬「分頁」效果
行星運動
探索“三等分点连线围成的小三角形”的特点
Hamid Naderi Yeganeh segment4
Discover Topics
Equations
Trigonometry
Plane Figures or Shapes
Bar Chart or Bar Graph
General Quadrilateral