Parallel Lines, Transversals, & Algebra

Front

What is a transversal?

Back

A line that passes through two or more lines in the same plane.

Front

If m∠6 = 50° then what is m∠4?

Back

130°

Front

What are corresponding angles?

Back

Angles that are in the same position on different parallel lines cut by a transversal.

Front

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

Back

They are equal.

Front

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

Back

180°.

Front

If m∠1 = 70°, what is m∠3 if ∠1 and ∠3 are corresponding angles?

Back

70°.

Front

What is the relationship between same-side interior angles when two parallel lines are cut by a transversal?

Back

They are supplementary (add up to 180°).

Front

If m∠5 = 40°, what is m∠7 if ∠5 and ∠7 are alternate exterior angles?

Back

40°.

Front

What is the definition of parallel lines?

Back

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

Front

If two lines intersect, what is the relationship between vertical angles?

Back

They are equal.