I had an old scarf which was so beautiful but I hadn't worn it in ages! The reason being it was torn from the bottom - But it looked so good on me I had to salvage it!
Since its made of chiffon, I sprayed the table lightly with water so it did not fly off and didn't shift.
Place the ruler on the torn part and even it out with a straight line. Mark with a chalk line.
Cut of the marked part and fold 1cm. iron - Since the cloth is wet it will act like its been pressed.
Stitch in a straight line down.
Cut of excess... Done!!