Parallel Lines Cut by a Transversal Test

Front

What are vertical angles?

Back

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

Front

What is the measure of supplementary angles?

Back

Supplementary angles measure a total of 180 degrees.

Front

What are same side interior angles?

Back

Same side interior angles are pairs of angles on the same side of the transversal and inside the two lines. They are supplementary.

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of angles on opposite sides of the transversal and inside the two lines. They are equal in measure.

Front

What are corresponding angles?

Back

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

Front

If ∠1 and ∠3 are vertical angles, what can we say about their measures?

Back

If ∠1 and ∠3 are vertical angles, then their measures are equal.

Front

If two angles are supplementary and one angle measures 70 degrees, what is the measure of the other angle?

Back

The other angle measures 110 degrees (180 - 70 = 110).

Front

What is the relationship between alternate exterior angles?

Back

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

Front

If ∠C measures 116°, what is the measure of its supplementary angle?

Back

The supplementary angle measures 64° (180 - 116 = 64).

Front

What is the definition of adjacent angles?

Back

Adjacent angles are two angles that share a common side and a common vertex but do not overlap.