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vodka
[1.7K]
2 years ago
7
The coordinates of the vertices of triangle ABC are A(-1,3), B(1,2) and C(-3,-1).
Mathematics
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answer:
Vlad1618
[11]
2 years ago
5
0
Check the picture below.
so... let's check those slopes then. Notice the triangle, the triangle "seem" to have a right-angle at the vertex A, namely, the slopes of AB and AC are perpendicular if that's true.
Now, when the product of two perpendicular slopes is -1.
so, let's check the slopes then.
now, let's check the product of AB and AC,
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