According to the material, which mesh element can be extruded?

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Multiple Choice

According to the material, which mesh element can be extruded?

Explanation:
Extrusion adds depth by extending a surface to create new geometry. You extrude a face by pushing it along its normal, which generates new side faces and a visible volume. Edges and vertices are just boundary lines and points; extruding them alone doesn’t define a solid shape, so they don’t produce the volume that extrusion is meant to create. Because faces carry the surface area that can be extended to form volume, the option stating that faces are the only object that can be extruded is the best fit.

Extrusion adds depth by extending a surface to create new geometry. You extrude a face by pushing it along its normal, which generates new side faces and a visible volume. Edges and vertices are just boundary lines and points; extruding them alone doesn’t define a solid shape, so they don’t produce the volume that extrusion is meant to create. Because faces carry the surface area that can be extended to form volume, the option stating that faces are the only object that can be extruded is the best fit.

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