$\"\"$

To prove that a line parallel to a side of the triangle, the line intersects two sides

should separate the sides into corresponding segments of proportional lengths.

So, to prove $\"\"$ , you have to show that $\"\"$ .

Substitute the known values and simplify.

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

Since $\"\"$ , sides doesnot have proportional lengths. So, $\"\"$ .

$\"\"$

The lines $\"\"$ are not parallel, $\"\"$ .