Transversal Angle Relationships

Front

What are vertical angles?

Back

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

Front

Define alternate interior angles.

Back

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

Front

What are alternate exterior angles?

Back

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

Front

What is the relationship between same side interior angles?

Back

Same side interior angles are pairs of angles that lie between two parallel lines and on the same side of the transversal. They are supplementary (add up to 180 degrees).

Front

If angle 4 is 50 degrees, what is the measure of angle 6?

Back

Angle 6 is also 50 degrees because they are vertical angles.

Front

If angle 3 is 70 degrees, what is the measure of angle 5?

Back

Angle 5 is 110 degrees because it is a same side interior angle with angle 3.

Front

What is the sum of the measures of angle 1 and angle 2 if they are corresponding angles?

Back

The sum of the measures of angle 1 and angle 2 is equal to 180 degrees.

Front

If angle 7 is 30 degrees, what is the measure of angle 8?

Back

Angle 8 is also 30 degrees because they are vertical angles.

Front

What is the relationship between angle 2 and angle 3 if they are alternate interior angles?

Back

Angle 2 and angle 3 are equal.