To determine which two angles are complementary, we need to find angles that add up to 90 degrees.
Given:
- Angle \( \angle NQO \) is a right angle, which measures 90 degrees.
- Angle \( \angle PQO \) is given as 50 degrees.
Since complementary angles sum to 90 degrees, we can use \( \angle PQO \) and \( \angle NQO \):
- \( \angle PQO + \angle NQO = 50^\circ + 40^\circ = 90^\circ \).
This information implies that \( \angle NQO \) and \( \angle PQO \) are complementary.
The correct response would thus be:
∠PQU and ∠NQO (angle upper P upper Q upper O and angle upper N upper Q upper O).
However, since this is not an option provided, let's review the choices:
- ∠MQN and ∠NQO (not sufficient information to confirm),
- ∠LQP and ∠PQO (also not directly related to 90 degrees),
- ∠MQL and ∠LQP (not sufficient information),
- ∠LQM and ∠MQN (not related).
Clarification could further allow selection among \( \angle NQO \) and \( \angle PQO \). Therefore I recommend selecting \( \angle NQO \) under the respect of the available options that best approach the complementary definition amid deductions!