$\"\"$

\

Let $\"\"$ is the mid point of $\"\"$ .

\

The points are $\"\"$ , $\"\"$ and $\"\"$ .

\

The formula for mid point between two points is,

\

$\"\"$ .

\

$\"\"$ and $\"\"$ .

\

Substitute $\"\"$ for $\"\"$ , $\"\"$ for $\"\"$ , $\"\"$ for $\"\"$ and $\"\"$ for $\"\"$ in above formula.

\

$\"\"$ $\"\"$

\

Now solve for $\"\"$ , $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

And $\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$ $\"\"$

\

The coordinates of $\"\"$ .