What is the Midpoint Formula in three-dimensional geometry?
The coordinates of the mid-point of the line segment joining two points P(x
1
, y
1
, z
1
) and Q(x
2
, y
2
, z
2
) is
$\left(\
frac
{x_{1}+x_{2}}{2}, \frac{y_{1}+y_{2}}{2}, \frac{z_{1}+z_{2}}{2}\right)$