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相似三角形
Author:
gklwong
Topic:
Similar Triangles
相似三角形
GeoGebra
New Resources
畫出對稱圖形
兩位數除以一位數（二）
兩位數加法
GeoGebra笔记功能体验课件
四邉形 (四年級) 教師版
Discover Resources
三角函數with sine, cosine圖形
阿基米德(3,8,8)
three circle touching each other
Simultaneous Equations (Linear and quadratic)
二次函数问题
Discover Topics
Symmetry
Pythagoras or Pythagorean Theorem
Conditional Probability
Combinatorics
Optimization Problems