Creo Direct > Designing in the Creo Direct Environment > Working in Part Mode > Working with 3D Geometry > Creating 3D Geometry > Extruded Geometry > Example: Entities Supported for Extrusion
  
Example: Entities Supported for Extrusion
Extrusions created using different entity types are highlighted in green on the left in the following figures:
Extrusion created with a single sketch:
Extrusion created with a single sketched region:
Extrusion created using multiple sketched regions: