The co-ordinates of the centroid of a triangle ABC are (-1,-2) what are the co-ordinates of vertex C, if co-ordinates of A and B are (6,-4) and (-2,2)Â respectively?

The co-ordinates of the centroid of a triangle ABC are (-1,-2) what ar

1.	The co-ordinates of the centroid of a triangle ABC are (-1,-2) what are the co-ordinates of vertex C, if co-ordinates of A and B are (6,-4) and (-2,2)Â respectively?
A.	(-7,-4)
B.	(7,4)
C.	(7,-4)
D.	(-7,4)
Answer» B. (7,4)