What is this Greek symbol?

Explore the History of Interiors Test. Engage with detailed questions and insightful explanations. Boost your preparation today.

This item tests recognizing a symbol by its visual form, focusing on what the symbol conveys in decorative contexts. The pictured mark resembles a flowing, wavy line—like a sine wave—rather than a letter from the Greek alphabet. That makes it best described as a wave motif, which is a common decorative element in interior design. In contrast, the other options correspond to recognizable Greek letterforms: a delta is a triangle, theta is a circle with a line through it, and omega has a horseshoe shape. So the wave option matches the image you’re seeing and best fits how such motifs are described in design history.