Find the centroid of the triangle with vertices (0,0),(6,0),(0, 0), (6, 0),(0,0),(6,0), and (0,6)(0, 6)(0,6).
(2,2)(2, 2)(2,2)
(3,3)(3, 3)(3,3)
(1,1)(1, 1)(1,1)
(4,4)(4, 4)(4,4)