( I am posting this here because i know there are alot of smart folks here)
i have looked all over the web and in my book and i feel like a real dummy
i can not figure out where to start on this problem.
can anyone help me please
"The drawing shows two plane mirrors that intersect at an angle of 50 degrees. An incident ray reflects from one mirror and then the other. what is the angle between the incident and outgoing ray?
http://www.villagephotos.com/pubbrowse.asp?folder_id=1141305