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三角形兩邊內接相似平行四邊形
Author:
Gideon Huang
GeoGebra
New Resources
柱體建築師
兩位數加法
拼砌四邊形
第八周作业
畫出對稱圖形
Discover Resources
畫鐘面
数轴上的整数加法
比較3個分數大小
再作万年历单晨
图中的三角形面积何时最小?(许兴华数学)
Discover Topics
Right Triangles
Probability
Quadratic Functions
Conic Sections
Linear Functions