Answer:
2.∠PQT and ∠TQS
Step-by-step explanation:
To Find : which pair of angles must be complementary?
Definition : Complementary angles are those whose sum is 90°
1.∠PQS and ∠SQR
These are supplementary angles . since their sum is 180°
2.∠PQT and ∠TQS
Since their sum is 90° hence complementary angles
3.∠PQT and ∠TQR
These are supplementary angles . since their sum is 180°
4.∠PQT and ∠PQS
Since ∠PQS =90° (given).
so, adding ∠PQT will increase its measure .
Hence not complementary angles
