PQRS is a cyclic quadrilateral. If ∠QPS = 75°, what is the size of ∠QRS?

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Mathematics WAEC 2003

PQRS is a cyclic quadrilateral. If ∠QPS = 75°, what is the size of ∠QRS?

  • 180o
  • 150o
  • 105o checkmark
  • 75o

The correct answer is: C

Explanation

< QPS = 75°

< QRS = 180° - 75° = 105° (opposite angles of a cyclic quadrilateral)

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