I'm not sure how to complete a two-column proof:

Given <2=<4,m<2=100
Prove:m<3=70
All i have so far:
<2=<4, m<2=100 : Given
M<2 =m <4 :definition of congruent angles
M<4=110 : ?
M<3+m<4= 180 : ?
M<3=70 : ?
This is so stressful, please hep!

1 answer

1. Transitive property of equality
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