ECZ 2011 · O-Level Paper 1 — Symmetry
What is the angle of rotational symmetry of a regular pentagon?
- A. 108°
- B. 60°
- C. 72°
- D. 120°
Verified working — step 1
A regular pentagon maps onto itself five times in a full turn, so the angle is 3605= …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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