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The vertices of a triangle are (1,-3), (...

The vertices of a triangle are (1,-3), (4,k) and (-9,7) . If its area is 15 sq units, find the value of k.

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The correct Answer is:
k = - 3 or k = - 9
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KUMAR PRAKASHAN-COORDINATE GEOMETRY-Test Your Skills
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  15. Find the value of k if the points A(6,10), B(7,k) and C(8,-10) are col...

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  16. The vertices of a triangle are (1,-3), (4,k) and (-9,7) . If its are...

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  17. Find the area of quadrilateral ABCD with vertices A(-4, -2), B(-3, -5)...

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  18. Find the area of the triangle formed by the midpoint of the sides of t...

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  19. If R(x,y) is a point on the line segment joining points P(a,b) and Q(...

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  20. Find the value of k if the points A(k,2-2k) , B(-k + 1, 2k) and C(-4-k...

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