Question

answer of last question
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Answer 1

Step-by-step explanation:

1) by SSS

2) PQ= SR, PR= SQ and QR = QR(common side)

3)by CPCT

SRP =PQS

so angle PSQ= 180-110-40= 30

Answer 2

Answer:

1. By SAS congruency criteria
2. PQ=SR ; PR=SQ ; angle PQS = Angle PSR
3. 30 degrees

Step-by-step explanation:

1. PQ=SR

       PR=SQ

      angle PQS = angle PSR

      Triangle  PSQ is congruent to triangle PSR.

    3.  Angle SRP = 40 deg =  angle PQS

         Angle QPS = 110 deg

      QPS + PQS+PSQ =180 deg

      110 + 40 + SPQ = 180 deg

     150+ SPQ= 180 deg

angle PSQ= 30 degrees