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Silent_Sorrow Group Title

Let A = (−1, 2, 1), B = (−7, 0, 1), C = (−3,−2,−3). How do you determine if the triangle ABC is right angled? Is it isosceles?

  • one year ago
  • one year ago

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  1. viniterranova Group Title
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    For a triangle be right you must multiply any two vectors. Try multiply A*B. If the product is zero, then the triangle is right.

    • one year ago
  2. Silent_Sorrow Group Title
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    So I first find the dot product of AB and BC?

    • one year ago
  3. viniterranova Group Title
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    Yees

    • one year ago
  4. zzr0ck3r Group Title
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    also you could find the length of the edges and see if it satifies pathagorean theorem

    • one year ago
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