Unit #3 - 3.1 Transversals and Angles

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

What is the measure of supplementary angles?

Back

180 degrees.

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of angles that are on opposite sides of the transversal and inside the two parallel lines.

Front

Which angles are corresponding angles?

Back

Corresponding angles are pairs of angles that are on the same side of the transversal and in corresponding positions.

Front

What are alternate exterior angles?

Back

Alternate exterior angles are pairs of angles that are on opposite sides of the transversal and outside the two parallel lines.

Front

What is the relationship between vertical angles?

Back

Vertical angles are always congruent (equal in measure).

Front

How do you identify corresponding angles in a transversal?

Back

Corresponding angles can be identified as angles that occupy the same relative position at each intersection where a straight line crosses two others.

Front

What is the sum of the angles in a straight line?

Back

The sum of the angles on a straight line is 180 degrees.

Front

What is the relationship between alternate interior angles when two parallel lines are cut by a transversal?

Back

Alternate interior angles are congruent when two parallel lines are cut by a transversal.

Front

What is the relationship between same-side interior angles?

Back

Same-side interior angles are supplementary when two parallel lines are cut by a transversal.