In each figure below find m∠1 and m∠2, if a||b. Show your work with statements.

Answer:
<1 = 130
<2 = 50
Step-by-step explanation:
<1 = 130 since it is an alternate interior angle and alternate interior angles are equal when the lines are parallel ( a is parallel to b)
<1 + <2 = 180 since the form a straight line
130+ <2 = 180
<2 = 180-130
<2 = 50
Answer:
Solutions given:
m<1=130°[alternate angle are equal]
again
m<1+m<2=180°[linear pair]
m<2=180°-130°
m<2=50°