ECZ 2012 · O-Level Paper 1 — Circle Theorems
Using the same diagram, calculate angle RUS.

- A. 50°
- B. 33°
- C. 83°
- D. 47°
Verified working — step 1
Angle QUS holds BOTH angle QUR and angle RUS - find the whole and the known part, then subtract.The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
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