In the figure,if $P$ is $(2, 4, 5)$,find the coordinates of $F$.

The shortest distance of the point $(a, b, c)$ from the $X-$axis is:

The distance of the point $P(-3, 4, 5)$ from the $yz$-plane is: (in $\text{ units}$)

The point on the $X$-axis which is equidistant from $A\ (2, -5, 7)$ and $B\ (1, 3, 6)$ is . . . . . . .

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

Let $A, B, C$ be the feet of perpendiculars from a point $P$ on the $x, y, z$-axes respectively. Find the coordinates of $A, B$ and $C$ for the following points $P$:
$(i)$ $(3, 4, 2)$
$(ii)$ $(-5, 3, 7)$
$(iii)$ $(4, -3, -5)$