How far apart are the points $(2,0,0)$ and $(-3,0,0)$?

If the extremities of a diagonal of a square are $(1, -2, 3)$ and $(2, -3, 5)$,then the length of its side is

The distance of the point $P(x, y, z)$ from the $yz$-plane is:

$A$ point lies in the $yz$-plane,and the sum of its coordinates is $3$. If the distance of the point from the $xz$-plane is twice the distance of the point from the $xy$-plane,find its coordinates.

Which of the following is at a distance of $\sqrt{10}$ from the point $(1, 2, 3)$?

The coordinates of a point which is equidistant from the points $(0, 0, 0), (a, 0, 0), (0, b, 0)$ and $(0, 0, c)$ are given by