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三角形
Author:
whtong
Topic:
Triangles
GeoGebra
New Resources
三位數除以一位數（一）
畫出對稱圖形
找出對稱軸
GeoGebra笔记功能体验课件
兩位數除以一位數（一）
Discover Resources
熱帶魚 (顏色變更)楊靜宜
期末作業(作品集)
圖形2
单晨制作水箱侧翻通用模型
祖冲之的期望：内棋与外棋
Discover Topics
Straight Lines
Ratios
Planes
Mathematics
Centroid or Barycenter