Name angles from a transversal or find the missing angle

Front

What are alternate interior angles?

Back

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

Front

Name a pair of alternate interior angles when two parallel lines are cut by a transversal.

Back

∡3 and ∡6.

Front

What is the measure of angle A if angle B is 70° and they are same-side interior angles?

Back

Angle A = 110° (same-side interior angles are supplementary).

Front

Which angles are congruent when two parallel lines are cut by a transversal?

Back

Corresponding angles.

Front

What is the relationship between alternate exterior angles?

Back

They are congruent when the lines are parallel.

Front

Define corresponding angles.

Back

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

Front

What is the sum of same-side interior angles?

Back

180° (they are supplementary).

Front

Identify the angle relationship: Angle 1 and Angle 5 when lines are parallel.

Back

Corresponding angles.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect; they are always congruent.

Front

If angle 5 is 50°, what is the measure of angle 6 if they are alternate interior angles?

Back

Angle 6 = 50° (they are congruent).