Question 1031379
<pre><b>
All angles start at the right hand side of the x-axis.
Positive angles rotate from there going COUNTER-clockwise,
and negative angles rotate from there going CLOCKwise.

First you draw a +130° angle, starting at the right side of
the x-axis and rotate counter-clockwise:

{{{drawing(200,200,-5,5,-5,5,
line(-6,0,6,0),line(0,-6,0,6),line(-3.2139,3.83,0,0),
red(arc(0,0,2,-2,0,130),locate(0,1.6,"130°")) )}}}

Then add -360° and get 130°+(-360°) and get -230°. 

So to draw a -230° angle, we start at the right side of
the x-axis and rotate CLOCKwise, indicated by the
blue arc:

{{{drawing(200,200,-5,5,-5,5,
line(-6,0,6,0),line(0,-6,0,6),line(-3.2139,3.83,0,0),
red(arc(0,0,2,-2,0,130),locate(0,1.6,"130°")),
blue(arc(0,0,2.5,-2.5,130,360),locate(-.7,-1.4,"-230°"))
 )}}}

Edwin</pre></b>