Proving Lines Parallel Mastery (11-6-20)

Front

What is the Converse of Vertical Angles?

Back

If two angles are vertical angles, then they are congruent.

Front

What is the Converse of Alternate Interior Angles Theorem?

Back

If two lines are cut by a transversal and the alternate interior angles are congruent, then the lines are parallel.

Front

What is the Converse of Corresponding Angles Postulate?

Back

If two lines are cut by a transversal and the corresponding angles are congruent, then the lines are parallel.

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they are in the same plane and do not intersect.

Front

What is the relationship between supplementary angles and parallel lines?

Back

If two angles are supplementary and are on the same side of a transversal, then the lines are parallel.

Front

If ∠3 and ∠4 are supplementary, what can be concluded about lines j and k?

Back

Lines j and k are parallel.

Front

If ∠1 ≅ ∠3, what can be concluded about line l and line m?

Back

Line l is parallel to line m.

Front

What is the significance of alternate interior angles in proving lines parallel?

Back

If alternate interior angles are congruent, the lines are parallel.

Front

What is the significance of corresponding angles in proving lines parallel?

Back

If corresponding angles are congruent, the lines are parallel.

Front

What is the significance of consecutive interior angles in proving lines parallel?

Back

If consecutive interior angles are supplementary, the lines are parallel.