modeling

[etos]

Where I think the blender the option to show the mesh has triangles.

[Richard_Marklew]

Some options.

• In edit mode use Select / Select Faces by Sides / Set to 3 and see number of faces selected at top of blender interface
• Use the MeshLint addon http://wiki.blender.org/index.php/Extensions:2.6/Py/Scripts/Modeling/MeshLint
• Use the MeshCheck addon http://www.blenderartists.org/forum/showthread.php?368016-Addon-Mesh-Check&p=2906124&viewfull=1#post2906124

[ridix]

Try using Triangulate modifier on the object. Then in Object property, select Wire under Display.