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In the diagram above, O is the center of the circle and ∠POR = 126°....

Mathematics
WAEC 1992

In the diagram above, O is the center of the circle and ∠POR = 126°. Find ∠PQR

  • A. 234o
  • B. 117o
  • C. 72o
  • D. 63o
  • E. 54o
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Correct Answer: Option B
Explanation

Reflex < POR = 360° - 126° = 234°

\(\therefore\) < PQR = \(\frac{1}{2} \times 234°\)

= 117°

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