Converse of Parallel Lines

Front

What is the Converse of Corresponding Angles?

Back

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

Front

What is the Converse of Alternate Interior Angles?

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 Alternate Exterior Angles?

Back

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

Front

What is the Converse of Consecutive Interior Angles?

Back

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

Front

What is the definition of supplementary angles?

Back

Two angles are supplementary if the sum of their measures is 180 degrees.

Front

If m∠5=65˚ and m∠9=115˚, what can be concluded about lines c and d?

Back

Line c is parallel to line d.

Front

If ∠5 ≅ ∠10, what can be concluded about lines c and d?

Back

Line c is parallel to line d.

Front

If ∠5 and ∠8 are supplementary, which converse can be used to prove lines are parallel?

Back

Consecutive Exterior Angles Converse.

Front

If ∠2 is supplementary to ∠3, what can be concluded about line a and line b?

Back

Line a is parallel to line b.

Front

If ∠6 is supplementary to ∠10, which converse can be used to prove lines are parallel?

Back

Consecutive Interior Angles Converse.