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GaryLee
GeoGebra
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画直线等分三角形的面积
四邉形 (四年級) 教師版
兩組對邊相等的四邊形
【案例】圆柱体内放置一个大球六个小球
四邊形的特性
Discover Resources
Trisectin the cube into 3 pyramids
錐體的橫截面
基础知识
「相似三角形」任务5的副本
剪紙問題
Discover Topics
Differential Calculus
Secant Line or Secant
Continuity
Terms
Similar Triangles