Step 1.
You need a set square & a mannequin, or body.
Step 2.
Put your dress on the mannequin or body if you don’t have a mannequin.
Step 3.
With your set square flat to the floor, mark with chalk where you would like the dress/skirt to be levelled to. Don’t forget to leave hem
allowance!!
Step 4.
Cut along the dotted line and hem the dress. You can lay the dress flat on a table and cut along the chalk line.