3.1-3.3 Extra Credit: Angles and Intersecting Lines

Front

What are alternate exterior angles?

Back

Alternate exterior angles are pairs of angles that lie outside the two parallel lines and on opposite sides of the transversal. They are equal in measure.

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal.

Front

What are corresponding angles?

Back

Corresponding angles are pairs of angles that are in the same position on two parallel lines in relation to a transversal. They are equal in measure.

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of angles that lie between the two parallel lines and on opposite sides of the transversal. They are equal in measure.

Front

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

Back

The angles formed have specific relationships: alternate interior angles are equal, alternate exterior angles are equal, corresponding angles are equal, and vertical angles are equal.

Front

Identify the pairs of alternate exterior angles in a diagram of parallel lines cut by a transversal.

Back

Look for angles that are outside the parallel lines and on opposite sides of the transversal.

Front

Identify the vertical angle to angle 4 in a diagram of parallel lines cut by a transversal.

Back

The vertical angle to angle 4 is angle 7.

Front

Identify the pairs of corresponding angles in a diagram of parallel lines cut by a transversal.

Back

Look for angles that are in the same relative position at each intersection of the transversal with the parallel lines.

Front

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

Back

Alternate interior angles are equal.

Front

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

Back

Corresponding angles are equal.