Answer :
Given the coordinates of the three vertices of a triangle ABC,
the centroid O coordinates are given by :
Ox=Ax+Bx+Cx/3
= 5+9+13/3
= 9
Oy=Ay+By+Cy/3
= 7-3+2/3
= 2
the centroid O coordinates are given by :
Ox=Ax+Bx+Cx/3
= 5+9+13/3
= 9
Oy=Ay+By+Cy/3
= 7-3+2/3
= 2