PQRS is a cyclic quadrilateral. If ∠QPS = 75°, what is the size of ∠QRS?...
MATHEMATICS
WAEC 2003
PQRS is a cyclic quadrilateral. If ∠QPS = 75°, what is the size of ∠QRS?
- A. 180°
- B. 150°
- C. 105°
- D. 75°
Correct Answer: C. 105°
Explanation
< QPS = 75°
< QRS = 180° - 75° = 105° (opposite angles of a cyclic quadrilateral)
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