Question

m(widehat{ihj})

Explanation:

Step1: Recall arc - measure relationship

The measure of an arc is equal to the measure of its central angle.

Step2: Identify the central angle

The central angle corresponding to arc $\overparen{IHJ}$ is $125^{\circ}$. So, $m\overparen{IHJ}=125^{\circ}$.

Answer:

$125^{\circ}$