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In the diagram above, O is the center of the circle. If ∠POR = 114o,...

Mathematics
WAEC 1989
In the diagram above, O is the center of the circle. If ∠POR = 114o, calculate ∠PQR
  • A. 123o
  • B. 118.5o
  • C. 117o
  • D. 114o
  • E. 54o
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Correct Answer: Option A
Explanation
Reflex POR = 2PQR
Reflex PQR = 360o - 114o = 246o
PQR = 246/2 = 123o
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