In the diagram, PQRS is a parallelogram and ∠QRT = 30o. Find x

  • A 95o
  • B 100o
  • C 120o
  • D 150o

The correct answer is D. 150o

Since ∠QRS = 180o - 30o = 150o and ∠SPQ = ∠QRS (theorem opp. angles in a parallelogram are equal) ∴ x = 150o

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