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 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
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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viniterranova
 one year ago
Best ResponseYou've already chosen the best response.0For a triangle be right you must multiply any two vectors. Try multiply A*B. If the product is zero, then the triangle is right.

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

zzr0ck3r
 one year ago
Best ResponseYou've already chosen the best response.0also you could find the length of the edges and see if it satifies pathagorean theorem
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