Question 36
Circle TheoremsIn the diagram, O is the centre of the circle. |OX| = 5 cm, |OZ| = 3 cm and ∠XOZ = ∠YOZ. Find |XY|

- A.5 cm
- B.4 cm
- C.3 cm
- D.8 cm
Show the answer and explanation
Answer: D (8 cm)
Explanation
OZ bisects the chord at right angles, so XZ = √(5² − 3²) = 4 cm and XY = 8 cm.