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After creating a Perimeter dimension in a sketch, it's not visible and cannot be edited.
Solution
You can View/Edit/Delete the Perimeter dimension this way :
- Edit the sketch
- Menu-Edit-Sketch Parameters
You can also use Tools-Customize to drag the "Sketch Parameters" icon to a toolbar in the Sketcher, this is easier to use.
Notes and References
Hardware/Software Configuration
Platform: INTL64
OS: window
OS Version: 764SP1
Product: NX
Application: DESIGN
Version: V10.0
Function: SKETCHER
Ref: 002-7008841