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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
兩組對邊相等和有直角的四邊形
四邊形的特性
找出對稱軸
三位數除以一位數（二）
判斷球體
Discover Resources
異分母分數加法
拋物線的疊合
製作對稱圖形 LEVEL 1
拋物線5--包絡線法
加法001(结果10以内)
Discover Topics
Tangent Function
Planes
Differential Calculus
Diagrams
Division
