Ray MN is the bisector of segment KL. KL KM and KM 5 cm. Find KN?

Since Ray MN is the bisector of segment KL, it divides KL into two equal parts. Given that KM is 5 cm and KL is equal to KM, then KL also measures 5 cm. Therefore, KN, which is half of KL, is 2.5 cm.