Question 5
Circle TheoremsIn the diagram, P, Q, R and S are points on the circle with centre O and reflex ∠POR = 220°. Find the angle marked x
- A.40°
- B.140°
- C.70°
- D.110°
Show the answer and explanation
Answer: D (110°)
Explanation
The angle at S stands on the arc subtended by the reflex angle at the centre, so x = ½ × 220° = 110°.