Cut the coat front pattern template according to the required size. Fold the fabric to fit the width of the template and keep it along the edge as shown above. Mark it and cut it out. You get your coat front pieces.
Next, cut the back pattern template, fold the fabric to fit the width of the template and keep it on the fold as shown above. Mark it and cut it out. You get your back piece.
Cut the pattern template for the sleeve, fold the fabric to fit the width of the template and keep it along the fold as shown above. Mark and cut the sleeve piece. Repeat the steps to get one more of the same piece.