The outer silhouette of a hair sculpture is defined by which term?

• A. Detail
• B. Structure
• C. Texture
• D. Form line

Answer: (D)

The outer silhouette of a hair sculpture is defined by the form line, the continuous edge that traces the outside boundary of the three‑dimensional shape. This line is what your eye follows to read the overall shape and proportion of the sculpture from any angle, giving it a clear, readable silhouette. Detail refers to the fine features inside the form, texture describes the surface quality of the hair, and structure addresses the internal framework that supports the form. None of those define the outer contour the way the form line does, so the form line is the best descriptor for the outer silhouette.