Multiple mirrors - Multiple images

Place 2 mirrors such that they form a

1.     90 degree angle.  Place a pencil in front of the mirrors.  How many pencils can you see ?  

90 x _______________  (number of images) =

2.    120 degree angle.  How many images of the pencil do you see? 

120 x ______________ ( number of images) = 

3.     60 degree angle.  How many images of the pencil do you see? 

60 x _____________ ( number of images) =

Guess how many images will be formed if the mirrors are kept at a 45 degree angle?

Try it and write the answer.