Parallel Lines & Transversals

Front

What are Vertical Angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal.

Front

What is a transversal?

Back

A transversal is a line that intersects two or more other lines at different points.

Front

What are Alternate Interior Angles?

Back

Alternate interior angles are pairs of angles that lie between two lines and on opposite sides of a transversal. They are equal when the lines are parallel.

Front

What are Corresponding Angles?

Back

Corresponding angles are pairs of angles that are in the same position on two different lines cut by a transversal. They are equal when the lines are parallel.

Front

What are Consecutive Interior Angles?

Back

Consecutive interior angles are pairs of angles that lie on the same side of the transversal and between the two lines. They are supplementary when the lines are parallel.

Front

What is the relationship between angle pairs ∠1 and ∠5?

Back

∠1 and ∠5 are corresponding angles.

Front

What is the relationship between angle C and angle P if they are on the same side of the transversal and between the two lines?

Back

Angle C and angle P are Consecutive Interior Angles.

Front

What is the corresponding angle to angle 4?

Back

The corresponding angle to angle 4 is angle 8.

Front

What are Alternate Exterior Angles?

Back

Alternate exterior angles are pairs of angles that lie outside two lines and on opposite sides of a transversal. They are equal when the lines are parallel.

Front

What is the sum of Consecutive Interior Angles when the lines are parallel?

Back

The sum of consecutive interior angles is 180 degrees.