Final answer:
Reference points in haircutting help to achieve symmetry, much like how wedges in drawing assist in maintaining proportion, with both aiming to create balanced and harmonious results.
Step-by-step explanation:
Reference points will assist in creating symmetry within a design so that both sides of the haircut come out the same. These points function similarly to the use of a wedge in the perspective drawing, which helps artists maintain proportion and orientation in their work. By using reference points, stylists can ensure that their cuts are even and balanced, just as artists use shading and shadows to give three-dimensionality and form to their drawings. For example, hatching is a technique used in drawing to show that one side of an object, such as a hat, is in shadow, thereby contributing to the object's three-dimensional appearance.