Parallel Lines and Transversals

Front

What are consecutive interior angles?

Back

Angles that are on the same side of the transversal and inside the two parallel lines.

Front

What are corresponding angles?

Back

Pairs of angles that are equal in measure.

Front

State the properties of parallel lines and transversals.

Back

Alternate interior angles, corresponding angles, consecutive interior angles, and vertical angles.

Front

When do alternate interior angles occur?

Back

When two parallel lines are intersected by a transversal line.

Front

Define alternate exterior angles.

Back

Pairs of angles that are on the opposite sides of the transversal and outside the two lines being intersected.

Front

What is a transversal?

Back

A line that intersects two or more lines at different points.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect.

Front

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

Back

They are equal in measure.

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.