$ \overline { HJ}$ is a perpendicular bisector of segment $\overline{ KI} $ because $\overline{ HJ} $ is perpendicular to $ \overline{ KI }$ and $\overline{ HJ} $ also bisects KI. (bisect means divide into two equal halves)
$ \overline { HJ}$ is a perpendicular bisector of segment $\overline{ KI} $ because $\overline{ HJ} $ is perpendicular to $ \overline{ KI }$ and $\overline{ HJ} $ also bisects KI. (bisect means divide into two equal halves)
