Parallel Lines Cut by a Transversal

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 Alternate Exterior Angles?

Back

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

Front

What are Corresponding Angles?

Back

Angles that are in the same position on two different lines in relation to the transversal.

Front

What are Same-Side Interior Angles?

Back

Angles that are on the same side of the transversal and inside the two lines.

Front

What is the Angle Sum Property of a Triangle?

Back

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

Front

If two parallel lines are cut by a transversal, what can be said about the Corresponding Angles?

Back

They are congruent.

Front

If two parallel lines are cut by a transversal, what can be said about the Same-Side Interior Angles?

Back

They are supplementary (add up to 180 degrees).