Find the value of K if A(8, 1), B(K, -4), C(2, -5) are collinear : | Filo
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Find the value of K if A(8, 1), B(K, -4), C(2, -5) are collinear :

Correct Answer: Option(b)
Solution:

Since the given points are collinear, they do not form a

triangle, which means area of the triangle is Zero.


Area of a triangle with vertices ;   and   is


Hence, substituting the points ;   and
the area formula, we get





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