Verified Answer :

In drawing the plane, you will be able to see the answers

Angle 1 and Angle 5 are congruent angles because they are
parallel to each other. In solving them numerically, we got:

m<1+m<5=100

m<1+m<1=100

2*m<1 =
100

m<1 =
100/2

m<1 = 50

m<5 = 50