I had a question about the number of images formed by two mirrors at an angle with each other. This website gives the following picture with 5 total images.
My question is, what is the basis for the green image? I tried drawing multiple rays from the object to observe how they would bounce and I only seem to ever get two images from one ray because once the second image is produced, the ray leaves the mirror system. This picture, also seems to support my conclusion.
In this instance, the final red ray bounces away from the mirror which means it wouldn't produce the 3rd (the green) image.