If the vertices of a triangle be (a, 1), (b, 3) and (4, c), then the centroid of the triangle will lie on x-axis, if
a + c = -4
a + b = -4
c = -4
b + c = -4
The point lies on axis of x, if y = 0.
Therefore, 1+3+c3 = 0 ⇒ c = -4.
If A(4, -3), B(3, -2) and C(2, 8) are the vertices of a triangle, then its centroid will be