This document provides instruction on perpendicular and angle bisectors. It defines key terms such as equidistant, locus, and perpendicular bisector. It explains that an angle bisector is the locus of points equidistant from the sides of an angle. Examples are provided to demonstrate applying theorems about perpendicular and angle bisectors to find missing measures. Students are asked to construct perpendicular bisectors and angle bisectors, find midpoints and slopes, and solve problems involving perpendicular and angle bisectors.