find the m <3 if m<5=130 and m<4 =70

Answer: 60°
Step-by-step explanation:
∠5 and ∠2 form a Linear Pair so their angles are supplementary.
∠5 + ∠2 = 180
130 + ∠2 = 180
∠2 = 50
∠2 + ∠3 + ∠4 = 180 Triangle Sum Theorem
50 + ∠3 + 70 = 180
∠3 + 120 = 180
∠3 = 60