Question

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

Answer 1

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