Question

Complete the two-column proof found in the attachment

Answer 1

Explanation:

STATEMENTS |:| REASONS

<1 <2 |:| supplementary angles

<3 <2 |:| congruent angles

<3 and <5 are supplementary |:| consecutive interior angles

l || m |:| parallel lines

Answer 2

1) m<1+m<2=180 ========> supplementary angles
2) m<3+m<2=180 ========> opposite angles are equal (vertical angles
theorem)
3) m<3 and m<5 are supplementary ====> Consecutive Interior Angles
4) L || M =====> corresponding angles converse.(If two lines cut by a
transversal so that corresponding angles are
congruent,then the lines are parallel to each other.)