Question

Please tell the answer

Answer 1

Step-by-step explanation:

Since, PQRT is a parallelogram,

PQ║TR

So, ∠R+∠Q=180°

⇒2∠SRQ+2∠SQR=180°

⇒∠SRQ+∠SQR=90°---1

In ΔQSR,

∠S+∠SRQ+∠SQR=180°

From  1,

⇒∠S+90°=180°

⇒∠S=180°-90°=90°

Therefore, ∠S=90°

Answer 2

please see the answer carefully