Question

angle 3 and angle 6 are.... congruent add up to 180 degrees add up to 360 degrees add up to 90 degrees

Explanation:

Step1: Identify angle - pair type

Angle 3 and angle 6 are alternate - interior angles when two parallel lines are cut by a transversal.

Step2: Recall property of alternate - interior angles

Alternate - interior angles are congruent.

Answer:

Congruent