Answer:
B. NB and DH
B. converse of corresponding angles theorem
Step-by-step explanation:
The transversal in this geometry is line BH. The angles marked 36° are on the same side of the transversal, and on the same sides of the intersecting lines NB and DH. That makes these congruent angles "corresponding" angles.
Segments NB and DH are parallel by the converse of the corresponding angles postulate.
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<em>Additional comment</em>
The <em>corresponding angles postulate</em> tells you corresponding angles are congruent where a transversal crosses parallel lines. Its converse tells you the lines are parallel if the corresponding angles are congruent.
<em>Corresponding</em> angles lie in the same direction from the vertex where the transversal meets one of the parallel lines. Here, the angles are "northwest" of the vertex.
