I am performing an analysis for optical ray traces on a SolidWorks 2014 drawing. I am looking to find the perfect position of a mirror so that it will reflect a laser across a specific plane. Since the reflected angle off of a mirror surface equals the incident angle I have two angle dimensions that I have to manipulate to see the results of rotating the angle of the mirror surface. Is there a way that I can have the reflected angle dimension always equal the incident angle dimension using an equation?