Answer :

Given: The vertices of triangle ABC are A (-1, -2), B(0, 1) and C(2, 0).


Concept Used:


The equation of the line passing through the two points ( x1, y1) and ( x2, y2)


To find:


Equation of side BC of triangle ABC.


The equation of median through A.


Explanation:


So, the equation of BC is


Formula used:




x + 2y – 2 = 0


Let D be the midpoint of median AD is


So,


So, the equation of the median AD is


Formula used:



4y + 8 = 5x + 5


5x – 4y – 3 = 0


The equation of line BC is x + 2y – 2 = 0


Hence, the equation of median is 5x – 4y – 3 = 0


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