Question 1048426: Determine whether the three points are the vertices of a right triangle
a) (6,-6), (9,-6),(9,1)
b) (7,0), (13,2), (12,-3)
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Determine whether the three points are the vertices of a right triangle
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You can find the lengths, then check using Pythagoras.
It's less work to find the 3 slopes of the lines, tho.
a) (6,-6), (9,-6),(9,1)
b) (7,0), (13,2), (12,-3)
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