Front

What are vertical angles?

Back

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

Front

What are exterior angles?

Back

Exterior angles are the angles formed outside of parallel lines when a transversal crosses them.

Front

What is a transversal?

Back

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

Front

What are remote interior angles?

Back

Remote interior angles are the two angles that are inside the parallel lines and opposite to a given exterior angle.

Front

What is the relationship between alternate interior angles?

Back

Alternate interior angles are congruent when two parallel lines are cut by a transversal.

Front

What is the relationship between corresponding angles?

Back

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

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180°.

Front

If two angles are supplementary, what is their sum?

Back

The sum of two supplementary angles is 180°.

Front

If two angles are complementary, what is their sum?

Back

The sum of two complementary angles is 90°.

Front

What is the measure of an angle that is supplementary to a 70° angle?

Back

The measure of the angle is 110°.