AG 3 Unit 3Parallel lines cut by a Transversal

Front

What is the alternate interior angle to angle 3?

Back

Angle 5.

Front

What is the angle relationship when two angles are opposite each other and formed by two intersecting lines?

Back

Vertical Angles.

Front

If m∠C = 116°, what is the measure of angle C?

Back

∠C = 116°.

Front

What do you call a line that intersects two parallel lines?

Back

Transversal.

Front

If angle 6 measures 25 degrees, what is the measure of angle 7?

Back

Angle 7 = 155 degrees.

Front

What are alternate interior angles?

Back

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

Front

What are corresponding angles?

Back

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

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees.

Front

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

Back

They are equal.

Front

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

Back

They are supplementary (add up to 180 degrees).