In the diagram, O is the centre of the circle where OS//QR and ∠SOR =...
MATHEMATICSWAEC 2004
In the diagram, O is the centre of the circle where OS//QR and ∠SOR = 35°
- A. 35°
- B. 45°
- C. 55°
- D. 70°
Correct Answer: C. 55°
Explanation
?SOR = ?ORQ alternate angle.
Also ?OQR = ?OQR (Base angle of isosceles)
?QOR = 108
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