In roofing, what shape does a hip typically describe?

A hip in roofing refers to the junction where two sloping sides of a roof meet. This design feature allows for water runoff and contributes to the aesthetic of the structure, often giving it a more dynamic appearance compared to flat or gabled roofs. Hipped roofs typically slope down on all four sides, forming a ridge at the top where the slopes converge, which is precisely what distinguishes them from other roof types.

Options that describe a concave curvature or a flat rooftop section do not accurately represent the nature of a hip, as these features do not convey the concept of an angle or intersection characteristic of hipped roofs. Similarly, a straight line along the edge of the roof does not capture the three-dimensional aspect of how two sloping sides converge; instead, it suggests a different roofing feature that is not specific to hips. Understanding the geometry involved in roofing can help in both construction and inspection of roofing systems.