Number of images formed by two inclined plane mirrors

The number of images formed by two plane mirrors inclined at 60^@ of an object placed symmetrically between mirror is

The total number of image formed by two plane mirrors, inclined at an angle of 112.5^@ and an object lying symmetrically is

The total number of images formed by two mirrors inclined at 120^(@) to each other is ______.

No Of Images Formed By Two Inclined Mirrors