ECZ 2016 · O-Level Paper 1 — Bearings
The diagram below shows an equilateral triangle ABC. A is due North of B and CN is parallel to BA. Find BĈN.

- A. 120°
- B. 60°
- C. 30°
- D. 150°
Verified working — step 1
Two facts combine: the equilateral triangle fixes angle ABC at 60°, and the parallel lines CN and BA make co-interior angles with the transversal BC.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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