In 3D modeling, which feature is used to create a flat object and then multiply it?

The process of creating a flat object and then multiplying it in 3D modeling is best represented by the revolve feature. When using the revolve command, you begin with a 2D profile or shape, which is then rotated around an axis to create a 3D object. This allows you to generate complex geometry based on simple 2D designs, making it particularly useful for creating items like cylinders, spheres, or any objects with rotational symmetry.

Revolve efficiently transforms a flat sketch into a three-dimensional shape, and this action inherently implies multiplication of the shape around the axis of revolution. This feature is fundamental in 3D modeling because it gives you the ability to create shapes that would be labor-intensive to model by pulling or extruding from a single profile.

The other features mentioned do not serve the same purpose in creating a flat object and multiplying it. Section Analysis is primarily used to visualize how a 3D object appears when it is "cut" through a section. Section View is focused on displaying a portion of an object for clarity in understanding its internal structure. Rigid Group refers to a grouping feature that maintains an object's geometric relationship, but it does not inherently create or multiply a flat object. Thus, revolve is the appropriate feature