a.
\Find the distance between the two jet.
\The points are
and
.
The distance between the points
and
is
.
Let the points are
and
.
Distance between the points is
.

Therefore, the distance between the two jets is
.
b.
\Find the mid point of two jets.
\The mid point
of
is
.
Mid point
.

a.
\The distance between the two jets is
.
b.
\\
.