The measure of m<FJH is 53 degrees
Inscribed angles formed in a circle are half the measure of their intercepted arcs.
This property holds true when the vertex of the inscribed angle lies on the circle and the angle intercepts the arc on the circumference.
For example, if an inscribed angle in a circle measures 60 degrees, then the arc it intercepts measures 120 degrees. This relationship remains consistent regardless of the angle or arc measure, as long as the angle is inscribed in the circle and its vertex lies on the circle itself.
From the diagram shown, we have that;
Intercepted arc = FH = 106 degrees
Then, <FHJ = FH/2 = 106/2 = 53 degrees