Parallel Lines and Triangles

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 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 is the relationship between alternate interior angles when two parallel lines are cut by a transversal?

Back

They are congruent (equal in measure).

Tags

CCSS.8.G.A.5

Front

What are corresponding angles?

Back

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

Tags

CCSS.8.G.A.5

Front

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

Back

They are congruent (equal in measure).

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 inside the two lines.

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

They are supplementary (add up to 180 degrees).

Tags

CCSS.8.G.A.5

Front

If Angle 2 = 57 degrees, what is the measure of Angle 3 if they are alternate interior angles?

Back

Angle 3 = 57 degrees.

Tags

CCSS.8.G.A.5

Front

If Angle 8 = 76 degrees, what is the measure of Angle 3 if they are corresponding angles?

Back

Angle 3 = 76 degrees.

Tags

CCSS.8.G.A.5