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1. if < 1 and < 2 form a linear pair and m< 1 = 72°, find m< 2.

a.
18°
b.
72°
c.
144°
d.
108°

2. if < 1 and < 2 form a linear pair, m< 1=100+20x, and m< 2=20x, find m< 2.

a.
2°
b.
40°
c.
140°
d.
180°

image result for what is another name for consecutive interior angles? ​

when two lines are crossed by another line (called the transversal): the pairs of angles on one side of the transversal but inside the two lines are called consecutive interior angles. in this example, these are consecutive interior angles: d and f.

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