Final answer:
The hairstyle that is characterized by both sides forming a mirror image of each other is known as symmetrical. This reflects a concept of balance seen in both art and biology.
Step-by-step explanation:
The hair design where both sides of the hairstyle form a mirror image of each other is known as symmetrical. This concept is deeply rooted in both the world of art and biology. In art, symmetrical balance refers to a composition that is visually stable with a central anchoring element, often used to convey a sense of formal balance and calmness. In biology, bilateral symmetry refers to organisms that can be divided into two identical mirror image halves through a single plane. The hairstyle in question reflects this same type of balance and uniformity on either side of a central axis.