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Outline
相似形應用_進階_Collection
Slope of a Line
perpendicular lines
distance between point-line
Proof without words: Cosine Rule (餘弦公式)
areas of similar triangles
Similar Triangles, exercise 1
垂線斜率_1
相似形應用_進階_Collection
Author:
Reinhold Yen
Slope of a Line
perpendicular lines
distance between point-line
Proof without words: Cosine Rule (餘弦公式)
areas of similar triangles
Similar Triangles, exercise 1
垂線斜率_1
Next
Slope of a Line
New Resources
算柱 (兩位數)
畫出對稱圖形
兩組對邊相等的四邊形
GeoGebra笔记功能体验课件
兩位數除以一位數（二）
Discover Resources
二次函數平移
Ambiguous Cylinder Illusion
Origami-Trisect An Angle
外心的位置
碎形三角形
Discover Topics
Ellipse
Cosine
Matrices
Integers
Parabola
