相似形應用_進階_Collection

Reinhold Yen, 2016. 7. 20.


  • 1. Slope of a Line
  • 2. perpendicular lines
  • 3. distance between point-line
  • 4. Proof without words: Cosine Rule (餘弦公式)
  • 5. areas of similar triangles
  • 6. Similar Triangles, exercise 1
  • 7. 垂線斜率_1

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Slope of a Line

Slope of a Line
– Irina Boyadzhiev

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