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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
兩位數除以一位數（二）
拼砌四邊形
兩組對邊相等的四邊形
三位數除以一位數（一）
異分母分數減法
Discover Resources
task 5
semops_圓錐
N-ellipse
旋轉圓弧
正立方體裁邊 (Chamfered Cube)
Discover Topics
Limits
Symmetry
Linear Equations
Cylinder
Algebra
