Final answer:
Ebony would need to compare the angles ∠egf and ∠omn to make sure the triangles are congruent by ASA.
Step-by-step explanation:
In order to make sure the triangles are congruent by ASA (Angle-Side-Angle) postulate, Ebony would need to compare ∠egf and ∠omn. ASA postulate states that if two angles of one triangle are congruent to two angles of another triangle, and the included sides are congruent, then the triangles are congruent.