When a ray or beam is reflected from a surface, the angle of reflection is the angle made between the reflected ray and a line perpendicular to the surface at the point of reflection.
When a ray or beam is reflected from a surface, the angle of reflection is the angle made between the reflected ray and a line perpendicular to the surface at the point of reflection. By the law of reflection, this is the same angle as the angle of incidence.
By the law of reflection, this is the same angle as the angle of incidence.