ECZ 2019 · O-Level Paper 1 — Symmetry
The diagram below shows a plane figure made up of congruent semi circles. Angle AOB = 90°. Describe fully the symmetry of the figure.
- A. Rotational symmetry of order 3 about O
- B. Line symmetry only
- C. Rotational symmetry of order 2 about O
- D. Rotational symmetry of order 4 about O
Verified working — step 1
The figure maps onto itself every 90° about O.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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