\
The laser beam is a ray. So, the geometric term modeled by the beam from laser
is a line.
The geometric term modeled by the beam from laser is a line.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")