numberofVertices = numberofSides +2

  • calioranged
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    Problem Description

    In this video – https://www.youtube.com/watch?v=YDCSKlFqpaU

     

    ‘numberofVertices’ is speicified as ‘numberofSides + 2’. I didn’t understand the explanation given in the video as to why this is the case, could you please explain this a bit further?

     

    Thanks, Ryan

  • Sonar Systems admin
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    Because they are triangles

  • calioranged
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    Triangles have 3 vertices and 3 sides. So why should there be 2 more vertices than sides?

  • Sonar Systems admin
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    Center one is shared

  • calioranged
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    So? Why does this mean that there should be two more vertices than sides?



    In this image, the circle is made up of 8 triangles (or sides), and 9 vertices. So I don’t see where the extra vertex is coming from?


  • Sonar Systems admin
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    How many are you getting?

  • calioranged
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    Well, as per my previous message, it seems to me that there should be one more vertex than there are sides (triangles), not two. Can you explain why this is not the case?

  • Sonar Systems admin
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    Let me look into this

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