The statement where it proved that triangle ABC is a right triangle should be option b. The slope of segment AB and the slope of segment BC = -1
Right triangle:
We know that in the right triangle both the legs should be perpendicular to each other also the product of slopes of perpendicular should be - 1.
So based on this, we can say that the slope of segment AB and the slope of segment BC is equivalent to -1
Therefore, the option b is correct.
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