$\"\"$

The given vertices of the triangle are $\"\"$ .

Since $\"\"$ is the median so X is midpoint of $\"\"$ .

Use midpoint formula to find the coordinates of X.

$\"\"$

So, coordintes of X are 0 and 7. $\"\"$

Using distance formula find $\"\"$ .

$\"\"$

$\"\"$ (Simplify) $\"\"$

The measure of $\"\"$ is 5.