If you want to check the geometry when entering model data, you do not need to set any Dimensions. The Tools menu offers several functions for measuring distances and angles.
Alternatively, you can use the list button in the CAD toolbar.
Click the nodes and members for measurement one after the other in the work window. A dialog box provides information how to proceed. The 'Distance' or 'Angle' of the point available for the current cursor position is also shown in this dialog box.
When you have defined the last object, a dialog box appears showing the coordinates of reference points as well as distance or angle information.