PerimeterKeyCreator \ Verify \ Perimeter
Use this feature to measure the actual and projected length of a single entity or a selected group of entities. All projected entity lengths are relative to the plane of the screen.
NOTE: This function only works with wireframe entities.
Using the Function:
1 Select Perimeter from the Tools>Verify submenu.
2 Select the entity(s) to be verified, using the selection menu, then select ACCEPT. The Data Verify box will then appear, displaying the perimeter data for the entity(s) selected.