Parallel Lines Cut by a Transversal Vocab

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What is a transversal?

Back

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

Front

What is the relationship between alternate interior angles?

Back

They are equal when two parallel lines are cut by a transversal.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect; they are equal.

Front

What are corresponding angles?

Back

Angles that are in the same position on two parallel lines in relation to a transversal; they are equal.

Front

What are alternate exterior angles?

Back

Angles that are on opposite sides of the transversal and outside the two lines; they are equal when the lines are parallel.

Front

What are same side interior angles?

Back

Angles that are on the same side of the transversal and between the two lines; they are supplementary when the lines are parallel.

Front

If angle a is 70 degrees, what is the measure of its supplementary angle?

Back

110 degrees.

Front

If two lines are parallel and a transversal cuts them, what can be said about the corresponding angles?

Back

They are equal.

Front

What is the sum of the measures of the angles formed by a transversal cutting two parallel lines?

Back

360 degrees.