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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
拼砌四邊形
四邊形的特性
兩位數除以一位數（二）
算柱 (兩位數)
球體建築師
Discover Resources
畢氏定理
pictures
指數函數與二次函數的交點數
幂函数的副本
中國剩餘定理 (Chinese Remainder Theorem)
Discover Topics
Vectors 2D (Two-Dimensional)
Scalene Triangles
Incircle or Inscribed Circle
Polygons
Exponent
