Force an angular dim at 0 or 180?

[rcamp]

How can you force an angular dim at 0 or 180? It always gives a linear dim in this case.

 

[ProFishent]

In the feature sketch the line at an angle, dimension, and then modify the angle to 0 or 180.

If you are trying to create the dimension on the drawing then redifine the feature, and use shown dimensions.

 

[Moroso]

Also don't forget to change the sketcher accuracy to be tighter so the angled line doesn't snap to a horizontal or vertical line.