What is a key feature of a symmetrical floral design?

A key feature of a symmetrical floral design is that it forms a formal, equilateral triangular shape. This design approach emphasizes balance and proportion, creating a mirror-image effect on either side of a central axis. The use of this triangular shape not only contributes to a structured and harmonious appearance but also evokes a sense of stability and elegance, which are hallmarks of traditional floral arrangements.

In contrast, options that suggest an informal aesthetic or unbalanced nature do not align with the fundamental principles of symmetrical design, which prioritize balance and order. Similarly, while filler flowers can be used in various arrangements, they are not a defining characteristic of symmetrical designs, which often focus on more prominent and focal elements within a structured layout. Thus, the equilateral triangular formation is the most distinctive and essential feature of a symmetrical floral arrangement.