If the vertices of triangle are (1,2,3), (2,3,1), (3,1,2), then the co-ordinates of centroid of triangle is
(2,2,2)
(1,1,1)
(3,3,3)
(4,4,4)
Centroid = (63,63,63) =(2, 2, 2)
A (1, 4), B (3, 2) and C (7, 5) are vertices of a triangle ABC. Find :
(i) the co-ordinates of the centroid of triangle ABC.
(ii) the equation of a line, through the centroid and parallel to AB.