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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
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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viniterranovaBest ResponseYou've already chosen the best response.0
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

Silent_SorrowBest ResponseYou've already chosen the best response.0
So I first find the dot product of AB and BC?
 one year ago

zzr0ck3rBest ResponseYou've already chosen the best response.0
also you could find the length of the edges and see if it satifies pathagorean theorem
 one year ago
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