Transversal Angle Relationships

Front

What are transversal angles?

Back

Transversal angles are angles formed when a transversal intersects two or more lines. They include corresponding angles, alternate interior angles, alternate exterior angles, and consecutive interior angles.

Front

Define corresponding angles.

Back

Corresponding angles are pairs of angles that are in the same position at each intersection where a straight line crosses two others. They are equal when the lines are parallel.

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 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

Define 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 vertical angles?

Back

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

Front

If two parallel lines are cut by a transversal, what can be said about corresponding angles?

Back

Corresponding angles are equal when two parallel lines are cut by a transversal.

Front

If angle 4 is 50 degrees, what is the measure of angle 2 if lines are parallel?

Back

Angle 2 is also 50 degrees because corresponding angles are equal.

Front

What is the sum of consecutive interior angles when lines are parallel?

Back

The sum of consecutive interior angles is 180 degrees.

Front

If angle 7 is 70 degrees, what is the measure of angle 3 if lines are parallel?

Back

Angle 3 is 110 degrees because it is supplementary to angle 7.