Parallel Lines cut by a Transversal Review

Front

What are parallel lines?

Back

Lines in a plane that never meet and are always the same distance apart.

Front

What is a transversal?

Back

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

Front

What are alternate interior angles?

Back

Angles that are on opposite sides of the transversal and inside the two lines.

Front

What are corresponding angles?

Back

Angles that are in the same position at each intersection where a transversal crosses two lines.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect.

Front

What are complementary angles?

Back

Two angles whose sum is 90 degrees.

Front

What are supplementary angles?

Back

Two angles whose sum is 180 degrees.

Front

What are adjacent angles?

Back

Two angles that share a common vertex and side, but do not overlap.

Front

What is a linear pair?

Back

A pair of adjacent angles whose sum is 180 degrees.

Front

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

Back

They are congruent.