Parallel Line Geometry

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 are alternate interior angles?

Back

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

Tags

CCSS.8.G.A.5

Front

If two parallel lines are cut by a transversal, what can be said about the alternate interior angles?

Back

They are equal.

Tags

CCSS.8.G.A.5

Front

What is the measure of angle 8 if angle 1 is 110°?

Back

110° (because angle 1 and angle 8 are corresponding angles).

Tags

CCSS.8.G.A.5

Front

What is the measure of angle 5 if angle 1 is 110°?

Back

110° (because angle 1 and angle 5 are alternate interior angles).

Tags

CCSS.8.G.A.5

Front

What is the measure of angle 7 if angle 1 is 110°?

Back

70° (because angle 1 and angle 7 are supplementary angles).

Tags

CCSS.7.G.B.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

If angle 3 is 70°, what is the measure of angle 6?

Back

70° (because angle 3 and angle 6 are corresponding angles).

Tags

CCSS.8.G.A.5

Front

What is the relationship between the sum of the interior angles on the same side of a transversal?

Back

They are supplementary, meaning they add up to 180°.

Tags

CCSS.8.G.A.5

Front

If angle 2 is 20°, what is the measure of angle 4?

Back

20° (because angle 2 and angle 4 are alternate exterior angles).

Tags

CCSS.8.G.A.5