Question

Find the coordinates of centroid of the triangles with vertices:
$(-1,3),(6,-3)$ and $(-3,6)$

Answer 1

$\begin{array}{c}\left(-1,3\right)\left(6,-3\right)\left(-3,6\right)\\ \left(x_1,y_1\right)=\left(\frac{6-3-1}{3},\frac{3-3+6}{3}\right)\\ \left(x_1,y_1\right)=\left(\frac{2}{3},2\right)\end{array}$