Parallel Lines and Transversals Retake

Front

If m∠2 = 55°, find the measure of ∠3.

Back

m∠3 = 125° (Since ∠2 and ∠3 are supplementary angles, m∠3 = 180° - m∠2 = 180° - 55° = 125°.)

Front

Name the alternate interior angle to ∠2 when lines m and n are parallel.

Back

∠6 is the alternate interior angle to ∠2.

Front

Which angle is NOT congruent to ∠5 when lines r, s, and p are parallel?

Back

∠4 is NOT congruent to ∠5.

Front

Name the consecutive interior angle to ∠6 when lines m and n are parallel.

Back

∠7 is the consecutive interior angle to ∠6.

Front

Name the alternate exterior angle to ∠4 when lines m and n are parallel.

Back

∠8 is the alternate exterior angle to ∠4.

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never meet; they are always the same distance apart.

Front

What is a transversal?

Back

A transversal is a line that crosses at least two other lines.

Front

What are corresponding angles?

Back

Corresponding angles are pairs of angles that are in similar positions at each intersection where a transversal crosses two lines.

Front

What is the relationship between alternate interior angles when two lines are parallel?

Back

Alternate interior angles are equal when two lines are parallel.

Front

What is the relationship between consecutive interior angles when two lines are parallel?

Back

Consecutive interior angles are supplementary (add up to 180°) when two lines are parallel.