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三圓外切2
Author:
AlexWang
GeoGebra
New Resources
第八周作业
畫出對稱圖形
拼砌四邊形
四邊形的特性
三位數除以一位數（一）
Discover Resources
以量角器量度角
三角形的外接圓
regular tetrahedron (CH4)
分段函數
相似三角形
Discover Topics
Boxplot
Bar Chart or Bar Graph
Equilateral Triangles
Rational Numbers
Continuity