Parallel Lines and Transversals

Front

What are parallel lines?

Back

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

Tags

CCSS.HSG.CO.A.1

Front

What is a transversal?

Back

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

Tags

CCSS.8.G.A.5

Front

What are corresponding angles?

Back

Angles that are in the same position on two parallel lines cut by a transversal; they are congruent.

Tags

CCSS.8.G.A.5

Front

What is the Corresponding Angles Theorem?

Back

If two parallel lines are cut by a transversal, then each pair of corresponding angles is equal.

Tags

CCSS.8.G.A.5

Front

What are alternate interior angles?

Back

Angles that lie between two parallel lines on opposite sides of a transversal; they are congruent.

Tags

CCSS.8.G.A.5

Front

What is the Alternate Interior Angles Theorem?

Back

If two parallel lines are cut by a transversal, then each pair of alternate interior angles is equal.

Tags

CCSS.8.G.A.5

Front

What are same-side interior angles?

Back

Angles that lie between two parallel lines on the same side of a transversal; they are supplementary.

Tags

CCSS.8.G.A.5

Front

What is the Same-Side Interior Angles Theorem?

Back

If two parallel lines are cut by a transversal, then each pair of same-side interior angles is supplementary.

Tags

CCSS.8.G.A.5

Front

What are alternate exterior angles?

Back

Angles that lie outside two parallel lines on opposite sides of a transversal; they are congruent.

Tags

CCSS.8.G.A.5

Front

What is the Alternate Exterior Angles Theorem?

Back

If two parallel lines are cut by a transversal, then each pair of alternate exterior angles is equal.

Tags

CCSS.8.G.A.5