The distance between points in space
$$AB = \sqrt {(x_2-x_1)^{2}+(y_2-y_1)^{2}+(z2-z1)^{2}}$$
x1, y1, z1 - first point coordinates
x2, y2, z2 - second point coordinates
x2, y2, z2 - second point coordinates
Find
It is known that:
= 