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Silent_Sorrow

  • 2 years ago

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?

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  1. viniterranova
    • 2 years ago
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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.

  2. Silent_Sorrow
    • 2 years ago
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    So I first find the dot product of AB and BC?

  3. viniterranova
    • 2 years ago
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    Yees

  4. zzr0ck3r
    • 2 years ago
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    also you could find the length of the edges and see if it satifies pathagorean theorem

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