Which feature would you use to create a spherical surface in SolidWorks?

To create a spherical surface in SolidWorks, the most suitable feature is the revolve feature. This feature allows you to create a 3D shape by revolving a 2D sketch around an axis. For a sphere, you would typically sketch a semicircle (or half of a circle) on one plane and then revolve that sketch around its centerline. This effectively generates a complete spherical shape.

In contrast, the other features serve different purposes and aren’t designed for creating spherical surfaces. A fillet is used to create rounded edges on parts, a loft is utilized to transition between two or more profiles, and shell is used to create hollow features in solid bodies. While these features are essential tools in part modeling, they do not provide the straightforward method needed to create a sphere like the revolve feature does.