Which characteristic defines angular lines as more difficult to use?

Angular lines are defined as having sharp turns and edges, which can create a sense of movement and energy in a design. However, this dynamic nature makes them more challenging to use effectively. When incorporating angular lines, designers must be cautious about how these lines interact with other elements in a composition. They can sometimes create tension or visual chaos if not balanced properly.

The dynamic nature of angular lines means they can attract attention quickly, but if overused or improperly integrated, they can overshadow other design elements or create an unintentional focal point that detracts from the overall harmony of the design. This characteristic requires a thoughtful approach to avoid overwhelming the viewer or disrupting the flow of a space or garment.

The other characteristics, such as the ability to add height or their emotional impact, do play a role in design but do not inherently define the challenge of using angular lines. Their structural purpose is also relevant but does not capture the essence of the difficulty that arises from their dynamic nature in design contexts.