Let PQR be a triangle with R (-1,4,2). Suppose M (2,1,2) is the mid point of PQ. The distance of the centroid of PQR from the point of intersection…

Let PQR be a triangle with $\displaystyle \mathrm{R}(-1,4,2)$. Suppose $\displaystyle \mathrm{M}(2,1,2)$ is the mid point of PQ . The distance of the centroid of $\displaystyle \triangle \mathrm{PQR}$ from the point of intersection of the lines $\displaystyle \frac{x-2}{0}=\frac{y}{2}=\frac{z+3}{-1}$ and $\displaystyle \frac{x-1}{1}=\frac{y+3}{-3}=\frac{z+1}{1}$ is