Angle N = 40 degrees, side NP = 8, angle Q = 40 degrees, and side QS = 8. What additional information would you need to prove that ΔNOP ≅ ΔQRS by ASA?

Angle O is congruent to angle R.
Angle P is congruent to angle S.
Side NO is congruent to side QR.
Side OP is congruent to side RS.

In order to prove that ΔNOP ≅ ΔQRS by ASA (angle-side-angle congruence), we would need to know that angle O is congruent to angle R and side NO is congruent to side QR. This information would provide us with the two angles and one side needed for the proof.