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.

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.

Tags

CCSS.8.G.A.5

Front

What are same-side interior angles?

Back

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

Tags

CCSS.8.G.A.5

Front

What are alternate interior angles?

Back

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

Tags

CCSS.8.G.A.5

Front

What are alternate exterior angles?

Back

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

Tags

CCSS.8.G.A.5

Front

What is the relationship between corresponding angles when two parallel lines are cut by a transversal?

Back

Corresponding angles are equal.

Tags

CCSS.8.G.A.5

Front

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

Back

Same-side interior angles are supplementary (add up to 180°).

Tags

CCSS.8.G.A.5

Front

If one angle measures 70°, what is the measure of its corresponding angle?

Back

70° (corresponding angles are equal).

Tags

CCSS.8.G.A.5

Front

If angle 4 measures 70° and angle 6 is a same-side interior angle, what is the measure of angle 6?

Back

110° (since they are supplementary, 180° - 70° = 110°).