Believe or not, you may need to make an angular dimension that is larger than 180 degrees at some time. But if you use the angular dimension tool and then select the two lines that you want to reference, it will not do a dimension larger than 180 degrees.
To do this:
DIMANGULAR <enter>
NOTE – look at the command line. It says “Select arc, circle, line, or <specify vertex>:”
hit <enter> to choose the specify vertex option
1 – pick the vertex (corner) of the angle
2 – pick one end of the lines
3 – pick the end of the other line
pull the dimension and place it.
The picture below shows the usual DIMANGULAR use and results on the left and on the right, the <specify vertex> option and where to pick.
AutoCAD Tips 
hi,
I have a little question, I am using AutoCad 2012, I have no idea how to make my vertex bigger with the breakline commend.
Any help…
Thank you alot
Do you mean the size of the inner part of the breakline?
If that is the case, there is an option right after the command is started to set the size.
Here is a link to a lisp routine that scale the size of the break symbol to the size of the overall line length
https://autocadtips.wordpress.com/2011/03/09/autolisp-break-line/
~Greg
My night is made! Problem solved. Skill improved.