Understanding and using angles created when parallel lines are 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 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 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 corresponding angles?

Back

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

Tags

CCSS.8.G.A.5

Front

What does it mean for angles to be supplementary?

Back

Two angles that add up to 180 degrees.

Tags

CCSS.7.G.B.5

Front

What does it mean for angles to be complementary?

Back

Two angles that add up to 90 degrees.

Tags

CCSS.7.G.B.5

Front

If two lines are parallel, what can be said about the same side interior angles?

Back

They are supplementary.

Tags

CCSS.8.G.A.5

Front

If angle 3 is 70 degrees, what is the measure of angle 6 if lines are parallel?

Back

Angle 6 is 110 degrees (since they are same side interior angles).

Front

What is the relationship between alternate exterior angles when lines are parallel?

Back

They are equal.

Tags

CCSS.8.G.A.5