Step-by-step explanation:
<HAM+<HAJ=180 LINEAR PAIR
<HAM=180-<HAJ=180-42=138IS YOURANSWER
Answer:
138°
∠JAM = 180°
∠JAH = 42°
∠JAH + ∠HAM = 180° because they are supplementary
42° + ∠HAM = 180°
∠HAM = 180°-42°
∠HAM = 138°
