Transversal angle pairs

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

Front

What are alternate interior angles?

Back

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

Front

What are consecutive interior angles?

Back

Consecutive interior angles are the pairs of angles that lie on the same side of the transversal and inside the two parallel lines. They are supplementary.

Front

What are alternate exterior angles?

Back

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

Front

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

Back

The corresponding angles are equal.

Front

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

Back

The alternate interior angles are equal.

Front

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

Back

The consecutive interior angles are supplementary (add up to 180 degrees).

Front

If angle 1 and angle 2 are vertical angles, what can be said about their measures?

Back

Angle 1 and angle 2 are equal in measure.

Front

If angle 3 and angle 4 are corresponding angles, what can be said about their measures?

Back

Angle 3 and angle 4 are equal in measure.