CPM Homework Help : CCG Problem 3-102

A laser light is pointed at a mirror as shown at right. If $∠x$ measures $48º$ , what are the measures of $∠y$ and $∠z$ ? Justify your reasons.

Hint:

The angle of incidence is equal to the angle of reflection.

More Help:

$∠x$ and $∠y$ are vertical angles.

$A light source, A, hits a mirror at an angle x between the mirror and the source. It refracts at an angle, z. between the mirror and the line of refraction B prime. The light source line extends behind the mirror to a point B. The angle opposite, x, between the mirror and B is, y.$