Question

Find the centroid of a triangle whose vertices are (3, -5), (-7, 4) and ( 10, -2).

Answer 1

Let O be he centroid of Δ ABC

Coordinates of O are 

O (x , y , z) = O `(( 3 + 10 - 7)/3 , (- 5 + 4 - 2)/3)`

= O (2 , -1)