# When two plane mirror are inclined at 60° to each other?

How many images will be formed? In the case above I think 5 images will be form. But how can I exactly find out the number of images if the inclination angle is different. Is there any formula or it is just we have to draw a ray diagram for this purpose?

Yes there is a formula for this $$N=\frac{360}{A}-1$$ where $N$ is no: of images formed and $A$ is the angle