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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
三位數除以一位數（二）
兩位數加法
【案例】2018年全国1卷理科12题
拼砌四邊形
【案例】圆柱体内放置一个大球六个小球
Discover Resources
triangle
橢圓
Coffee Brewing Control Chart
歐幾米德多面體（四邊形與六邊形－進階加強版）
三角函數的由來
Discover Topics
Upper and Lower Sum or Riemann Sum
Probability
Limits
Trigonometric Functions
Rectangle
