The angle of reflection of a ray is the angle measured from the reflected ray to the surface normal. From the law of reflection, , where is the angle of incidence. is measured between the ray and a line normal to the surface that intersects the surface at the same point as the ray.
// Angulo di Reflessione (Gaeta, Italy)
Fortunately we found time to go to the beach…
…and try the tasty amazing italian ice creams.