The mid point of a line joining the points (x1, y1) and ( x2, y2) is given by [(x1 + x2) / 2 , (y1 + y2)/2]
For the side, BC the coordinates of B are (7 , 3) and those of C are ( 5, 7).
The mid point of BC is [(7+5)/2 , (3+7)/2]
=> (12/2 , 10/2)
=> (6, 5)
The required mid-point is ( 6, 5)
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