find m<1 m<2 138
i did it asappp,thank you

Answer:
mΔ1 = 42°
mΔ2 = 42°
Step-by-step explanation:
Δ1 + 138° = 180°
Δ1 = 180° - 138°
Δ1 = 42°
Δ2 + 138° = 180°
Δ2 = 180° - 138°
Δ2 = 42°