ECZ 2024 · GCE Paper 1 — Mensuration
A sector has angle 81° and area 34.65 cm2. Calculate its radius. [π = 227]

- A. 49 cm
- B. 14 cm
- C. 7 cm
- D. 4.95 cm
Verified working — step 1
34.65 = (81360) × (227) × r2The 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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